Silence warnings rather than keeping them in the logs.

We can simply revert this patch to work on these warnings independently.

Bug: http://b/72331526
Bug: http://b/72331524
Bug: http://b/72330874
Test: Build

Change-Id: I9cec51578a1c6de33fb6f832c758b9916c61b735
diff --git a/cc/config/clang.go b/cc/config/clang.go
index 004840a..a33db01 100644
--- a/cc/config/clang.go
+++ b/cc/config/clang.go
@@ -151,16 +151,16 @@
 
 		// http://b/72331526 Disable -Wtautological-* until the instances detected by these
 		// new warnings are fixed.
-		"-Wno-error=tautological-constant-compare",
+		"-Wno-tautological-constant-compare",
 
 		// http://b/72331524 Allow null pointer arithmetic until the instances detected by
 		// this new warning are fixed.
-		"-Wno-error=null-pointer-arithmetic",
+		"-Wno-null-pointer-arithmetic",
 
 		// http://b/72330874 Disable -Wenum-compare until the instances detected by this new
 		// warning are fixed.
-		"-Wno-error=enum-compare",
-		"-Wno-error=enum-compare-switch",
+		"-Wno-enum-compare",
+		"-Wno-enum-compare-switch",
 	}, " "))
 }