[compiler-rt] Remove unused local variables (NFC) (#144010)

GitOrigin-RevId: cd573e0a547dba18e2a960967c1f24f124c6cb26

FuzzerDataFlowTrace.cpp

diff --git a/FuzzerDataFlowTrace.cpp b/FuzzerDataFlowTrace.cpp
index 93bf817..c9210c7 100644
--- a/FuzzerDataFlowTrace.cpp
+++ b/FuzzerDataFlowTrace.cpp
@@ -265,8 +265,6 @@
     // we then request tags in [0,Size/2) and [Size/2, Size), and so on.
     // Function number => DFT.
     auto OutPath = DirPlusFile(DirPath, Hash(FileToVector(F.File)));
-    std::unordered_map<size_t, std::vector<uint8_t>> DFTMap;
-    std::unordered_set<std::string> Cov;
     Command Cmd;
     Cmd.addArgument(DFTBinary);
     Cmd.addArgument(F.File);