Remove stale comment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103696 91177308-0d34-0410-b5e6-96231b3b80d8

tools/libclang/CIndex.cpp

@@ -1167,8 +1167,6 @@ clang_createTranslationUnitFromSourceFile(CXIndex CIdx,
                                    RemappedFiles.size(),
                                    /*CaptureDiagnostics=*/true));
 
-    // FIXME: Until we have broader testing, just drop the entire AST if we
-    // encountered an error.
     if (NumErrors != Diags->getNumErrors()) {
       // Make sure to check that 'Unit' is non-NULL.
       if (CXXIdx->getDisplayDiagnostics() && Unit.get()) {