Revert "Name function arguments in libc headers for Studio."

This reverts commit 079bff4fa52b0c3c76057451cc9cdecf1827fce0.

Broke builds with SANITIZE_HOST=address with an asan failure in versioner.

Change-Id: I22b113fd5405589d1a25e5e137c450aaba1ade5f
diff --git a/libc/include/utime.h b/libc/include/utime.h
index be6b894..9783859 100644
--- a/libc/include/utime.h
+++ b/libc/include/utime.h
@@ -35,8 +35,8 @@
 
 __BEGIN_DECLS
 
-int utime(const char* __filename, const struct utimbuf* __times);
+int utime(const char*, const struct utimbuf*);
 
 __END_DECLS
 
-#endif
+#endif /* _UTIME_H_ */