Remove debugging variable I forgot to remove in my last commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61910 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/CacheTokens.cpp b/Driver/CacheTokens.cpp
index 8c3bf51..f1ab50e 100644
--- a/Driver/CacheTokens.cpp
+++ b/Driver/CacheTokens.cpp
@@ -425,7 +425,6 @@
     Emit32(n);
     
     for (unsigned i = 0; i < n; ++i) {
-      ++count;
       // Write out the offset of the token within the source file.
       Emit32(spellings[i].first);