Remove erroneous driver test for -fsanitize=fuzzer flag

libfuzzer is not available on all platforms, and hence we can not always
rely that it was compiled.

llvm-svn: 301216

clang/test/Driver/fuzzer.c

@@ -15,8 +15,6 @@
 //
 // CHECK-LIBCXX-DARWIN: -lc++
 
-// RUN: %clang -fsanitize=fuzzer %s
-
 int LLVMFuzzerTestOneInput(const char *Data, long Size) {
   return 0;
 }