Revert "[libFuzzer] Use custom allocators for STL containers in libFuzzer"

This reverts commit 3539efc2f2218dba2bcbd645d0fe276f2b5cf588.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@311831 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/FuzzerIO.cpp b/FuzzerIO.cpp
index eeb1048..1a06d44 100644
--- a/FuzzerIO.cpp
+++ b/FuzzerIO.cpp
@@ -68,10 +68,10 @@
   fclose(Out);
 }
 
-void ReadDirToVectorOfUnits(const char *Path, fuzzer::vector<Unit> *V,
+void ReadDirToVectorOfUnits(const char *Path, std::vector<Unit> *V,
                             long *Epoch, size_t MaxSize, bool ExitOnError) {
   long E = Epoch ? *Epoch : 0;
-  fuzzer::vector<std::string> Files;
+  std::vector<std::string> Files;
   ListFilesInDirRecursive(Path, Epoch, &Files, /*TopDir*/true);
   size_t NumLoaded = 0;
   for (size_t i = 0; i < Files.size(); i++) {