--- a/config/autoconf.mk.in
+++ b/config/autoconf.mk.in
@@ -499,18 +499,16 @@ ifdef MOZILLA_1_9_2_BRANCH
 # Windows m-1.9.2 /toolkit/mozapps/installer/package-name.mk needs this variable.
 MOZ_BITS=32
 endif
 OS_TARGET=@OS_TARGET@
 OS_ARCH=@OS_ARCH@
 OS_RELEASE=@OS_RELEASE@
 OS_TEST=@OS_TEST@
 
-TARGET_DEVICE = @TARGET_DEVICE@
-
 # For Solaris build
 SOLARIS_SUNPRO_CC = @SOLARIS_SUNPRO_CC@
 SOLARIS_SUNPRO_CXX = @SOLARIS_SUNPRO_CXX@
 
 # For AIX build
 AIX_OBJMODEL = @AIX_OBJMODEL@
 
 # For OS/2 build

--- a/configure.in
+++ b/configure.in
@@ -7116,17 +7116,16 @@ AC_SUBST(USE_DEPENDENT_LIBS)
 
 AC_SUBST(MOZ_BUILD_ROOT)
 AC_SUBST(MOZ_OS2_TOOLS)
 AC_SUBST(MOZ_OS2_USE_DECLSPEC)
 
 AC_SUBST(MOZ_POST_DSO_LIB_COMMAND)
 AC_SUBST(MOZ_POST_PROGRAM_COMMAND)
 AC_SUBST(MOZ_TIMELINE)
-AC_SUBST(TARGET_DEVICE)
 
 AC_SUBST(MOZ_APP_NAME)
 AC_SUBST(MOZ_APP_DISPLAYNAME)
 AC_SUBST(MOZ_APP_VERSION)
 AC_SUBST(MOZ_APP_VERSION_TXT)
 AC_SUBST(FIREFOX_VERSION)
 AC_SUBST(THUNDERBIRD_VERSION)
 AC_SUBST(SUNBIRD_VERSION)