--- a/build/macosx/cross-mozconfig.common
+++ b/build/macosx/cross-mozconfig.common
@@ -2,17 +2,16 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 MOZ_AUTOMATION_L10N_CHECK=0
 
 if [ "x$IS_NIGHTLY" = "xyes" ]; then
   # Some nightlies (eg: Mulet) don't want these set.
   MOZ_AUTOMATION_UPDATE_PACKAGING=${MOZ_AUTOMATION_UPDATE_PACKAGING-1}
-  MOZ_AUTOMATION_SDK=${MOZ_AUTOMATION_SDK-1}
 fi
 . "$topsrcdir/build/mozconfig.common"
 
 # ld needs libLTO.so from llvm
 mk_add_options "export LD_LIBRARY_PATH=$topsrcdir/clang/lib"
 
 CROSS_CCTOOLS_PATH=$topsrcdir/cctools
 # This SDK was copied from a local XCode install and uploaded to tooltool.

--- a/build/macosx/local-mozconfig.common
+++ b/build/macosx/local-mozconfig.common
@@ -1,17 +1,16 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 if [ "x$IS_NIGHTLY" = "xyes" ]; then
   # Some nightlies (eg: Mulet) don't want these set.
   MOZ_AUTOMATION_UPLOAD_SYMBOLS=${MOZ_AUTOMATION_UPLOAD_SYMBOLS-1}
   MOZ_AUTOMATION_UPDATE_PACKAGING=${MOZ_AUTOMATION_UPDATE_PACKAGING-1}
-  MOZ_AUTOMATION_SDK=${MOZ_AUTOMATION_SDK-1}
 fi
 . "$topsrcdir/build/mozconfig.common"
 
 if [ -d "$topsrcdir/clang" ]; then
     # mozilla-central based build
     export CC=$topsrcdir/clang/bin/clang
     export CXX=$topsrcdir/clang/bin/clang++
     export LLVMCONFIG=$topsrcdir/clang/bin/llvm-config

--- a/build/mozconfig.automation
+++ b/build/mozconfig.automation
@@ -12,17 +12,16 @@
 mk_add_options "export MOZ_AUTOMATION_BUILD_SYMBOLS=${MOZ_AUTOMATION_BUILD_SYMBOLS-1}"
 mk_add_options "export MOZ_AUTOMATION_L10N_CHECK=${MOZ_AUTOMATION_L10N_CHECK-1}"
 mk_add_options "export MOZ_AUTOMATION_PACKAGE=${MOZ_AUTOMATION_PACKAGE-1}"
 mk_add_options "export MOZ_AUTOMATION_PACKAGE_TESTS=${MOZ_AUTOMATION_PACKAGE_TESTS-1}"
 mk_add_options "export MOZ_AUTOMATION_INSTALLER=${MOZ_AUTOMATION_INSTALLER-0}"
 mk_add_options "export MOZ_AUTOMATION_UPDATE_PACKAGING=${MOZ_AUTOMATION_UPDATE_PACKAGING-0}"
 mk_add_options "export MOZ_AUTOMATION_UPLOAD=${MOZ_AUTOMATION_UPLOAD-1}"
 mk_add_options "export MOZ_AUTOMATION_UPLOAD_SYMBOLS=${MOZ_AUTOMATION_UPLOAD_SYMBOLS-0}"
-mk_add_options "export MOZ_AUTOMATION_SDK=${MOZ_AUTOMATION_SDK-0}"
 
 # If we are also building with MOZ_PKG_PRETTYNAMES, set the corresponding
 # stages.
 if test "$MOZ_AUTOMATION_PRETTY" = "1"; then
     mk_add_options "export MOZ_AUTOMATION_PRETTY_PACKAGE=${MOZ_AUTOMATION_PACKAGE-1}"
     mk_add_options "export MOZ_AUTOMATION_PRETTY_PACKAGE_TESTS=${MOZ_AUTOMATION_PACKAGE_TESTS-1}"
     mk_add_options "export MOZ_AUTOMATION_PRETTY_L10N_CHECK=${MOZ_AUTOMATION_L10N_CHECK-1}"
     mk_add_options "export MOZ_AUTOMATION_PRETTY_INSTALLER=${MOZ_AUTOMATION_INSTALLER-0}"

--- a/build/mozconfig.win-common
+++ b/build/mozconfig.win-common
@@ -1,17 +1,16 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 if [ "x$IS_NIGHTLY" = "xyes" ]; then
   # Some nightlies (eg: Mulet) don't want these set.
   MOZ_AUTOMATION_UPLOAD_SYMBOLS=${MOZ_AUTOMATION_UPLOAD_SYMBOLS-1}
   MOZ_AUTOMATION_UPDATE_PACKAGING=${MOZ_AUTOMATION_UPDATE_PACKAGING-1}
-  MOZ_AUTOMATION_SDK=${MOZ_AUTOMATION_SDK-1}
 fi
 
 # Some builds (eg: Mulet) don't want the installer, so only set this if it
 # hasn't already been set.
 MOZ_AUTOMATION_INSTALLER=${MOZ_AUTOMATION_INSTALLER-1}
 
 export SOCORRO_SYMBOL_UPLOAD_TOKEN_FILE=c:/builds/crash-stats-api.token
 

--- a/build/unix/mozconfig.linux
+++ b/build/unix/mozconfig.linux
@@ -1,13 +1,12 @@
 if [ "x$IS_NIGHTLY" = "xyes" ]; then
   # Some nightlies (eg: Mulet) don't want these set.
   MOZ_AUTOMATION_UPLOAD_SYMBOLS=${MOZ_AUTOMATION_UPLOAD_SYMBOLS-1}
   MOZ_AUTOMATION_UPDATE_PACKAGING=${MOZ_AUTOMATION_UPDATE_PACKAGING-1}
-  MOZ_AUTOMATION_SDK=${MOZ_AUTOMATION_SDK-1}
 fi
 
 . "$topsrcdir/build/mozconfig.common"
 
 TOOLTOOL_DIR=${TOOLTOOL_DIR:-$topsrcdir}
 
 # some b2g desktop builds still happen on i686 machines, and the tooltool
 # toolchain is x86_64 only.

--- a/im/installer/Makefile.in
+++ b/im/installer/Makefile.in
@@ -111,18 +111,16 @@ ifeq (cocoa,$(MOZ_WIDGET_TOOLKIT))
 MOZ_PKG_MAC_DSSTORE=branding/dsstore
 MOZ_PKG_MAC_BACKGROUND=branding/background.png
 MOZ_PKG_MAC_ICON=branding/disk.icns
 MOZ_PKG_MAC_EXTRA=--symlink "/Applications:/ "
 endif
 
 NON_OMNIJAR_FILES =
 
-INSTALL_SDK = 1
-
 GENERATE_CACHE=1
 
 include $(MOZILLA_SRCDIR)/toolkit/mozapps/installer/signing.mk
 include $(MOZILLA_SRCDIR)/toolkit/mozapps/installer/packager.mk
 
 ifeq (bundle, $(MOZ_FS_LAYOUT))
 BINPATH = $(_BINPATH)
 DEFINES += -DAPPNAME=$(_APPNAME)

--- a/mail/installer/Makefile.in
+++ b/mail/installer/Makefile.in
@@ -119,18 +119,16 @@ ifeq (cocoa,$(MOZ_WIDGET_TOOLKIT))
 MOZ_PKG_MAC_DSSTORE=branding/dsstore
 MOZ_PKG_MAC_BACKGROUND=branding/background.png
 MOZ_PKG_MAC_ICON=branding/disk.icns
 MOZ_PKG_MAC_EXTRA=--symlink '/Applications:/ '
 endif
 
 NON_OMNIJAR_FILES = defaults/messenger/mailViews.dat
 
-INSTALL_SDK = 1
-
 include $(MOZILLA_SRCDIR)/toolkit/mozapps/installer/signing.mk
 include $(MOZILLA_SRCDIR)/toolkit/mozapps/installer/packager.mk
 
 ifeq (bundle, $(MOZ_FS_LAYOUT))
 BINPATH = $(_BINPATH)
 DEFINES += -DAPPNAME=$(_APPNAME)
 else
 # Every other platform just winds up in dist/bin

--- a/suite/installer/Makefile.in
+++ b/suite/installer/Makefile.in
@@ -103,17 +103,17 @@ DEFINES += -DMOZ_BUNDLED_FONTS=1
 endif
 
 ifdef MOZ_LDAP_XPCOM
 DEFINES += -DMOZ_LDAP_XPCOM=1
 endif
 
 # Set MSVC dlls version to package, if any.
 # With VS2015+ it does not make sense to define the ucrt libs without
-# the base c++ libs and vice versa. 
+# the base c++ libs and vice versa.
 ifdef MOZ_NO_DEBUG_RTL
 ifdef WIN32_REDIST_DIR
 ifdef WIN_UCRT_REDIST_DIR
 DEFINES += -DMOZ_PACKAGE_MSVC_DLLS=1
 DEFINES += -DMSVC_C_RUNTIME_DLL=$(MSVC_C_RUNTIME_DLL)
 DEFINES += -DMSVC_CXX_RUNTIME_DLL=$(MSVC_CXX_RUNTIME_DLL)
 DEFINES += -DMOZ_PACKAGE_WIN_UCRT_DLLS=1
 endif
@@ -153,18 +153,16 @@ endif
 NON_OMNIJAR_FILES = \
 	defaults/messenger/mailViews.dat \
 	defaults/profile/panels.rdf \
 	defaults/profile/mimeTypes.rdf \
 	defaults/profile/chrome/userChrome-example.css \
 	defaults/profile/chrome/userContent-example.css \
 	$(NULL)
 
-INSTALL_SDK = 1
-
 include $(MOZILLA_SRCDIR)/toolkit/mozapps/installer/packager.mk
 
 ifeq (Darwin, $(OS_ARCH))
 BINPATH = $(_BINPATH)
 DEFINES += -DAPPNAME=$(_APPNAME)
 else
 BINPATH = bin
 endif