Revert "Revert "Remove unneeded -Wno-constant-logical-operand flag""

This reverts commit f993e7797dc5f1040e39ad9ca1bad27fa0ca66b8.

Build breakage fixed.

Test: m checkbuild
diff --git a/cc/config/clang.go b/cc/config/clang.go
index 6996680..4862e05 100644
--- a/cc/config/clang.go
+++ b/cc/config/clang.go
@@ -184,9 +184,6 @@
 		// compatibility.
 		"-Wno-c++98-compat-extra-semi",
 
-		// Disable this warning until we can fix all instances where it fails.
-		"-Wno-constant-logical-operand",
-
 		// Disable this warning because we don't care about behavior with older compilers.
 		"-Wno-return-std-move-in-c++11",
 	}, " "))