--- a/security/pkix/test/lib/pkixtestutil.cpp
+++ b/security/pkix/test/lib/pkixtestutil.cpp
@@ -48,22 +48,16 @@ namespace mozilla { namespace pkix { nam
 static const uint8_t alg_sha256WithRSAEncryption[] = {
   0x30, 0x0b, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b
 };
 const Input sha256WithRSAEncryption(alg_sha256WithRSAEncryption);
 
 namespace {
 
 inline void
-deleteCharArray(char* chars)
-{
-  delete[] chars;
-}
-
-inline void
 fclose_void(FILE* file) {
   (void) fclose(file);
 }
 
 typedef mozilla::pkix::ScopedPtr<FILE, fclose_void> ScopedFILE;
 
 FILE*
 OpenFile(const string& dir, const string& filename, const string& mode)