Remove redundant AND from ValidateClear

Component types of disabled draw
buffers are already set to zero.

Bug: angleproject:8618
Change-Id: I193dc6249158c6314076fedc7b4f43261d81f074
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5419708
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
diff --git a/src/libANGLE/validationES2.cpp b/src/libANGLE/validationES2.cpp
index 80b11ea..f75b106 100644
--- a/src/libANGLE/validationES2.cpp
+++ b/src/libANGLE/validationES2.cpp
@@ -2615,9 +2615,7 @@
 
     if (extensions.webglCompatibilityANGLE && (mask & GL_COLOR_BUFFER_BIT) != 0)
     {
-        const gl::DrawBufferMask intOrUnsignedIntMask =
-            GetIntOrUnsignedIntDrawBufferMask(fbo->getDrawBufferTypeMask());
-        if ((intOrUnsignedIntMask & fbo->getDrawBufferMask()).any())
+        if (GetIntOrUnsignedIntDrawBufferMask(fbo->getDrawBufferTypeMask()).any())
         {
             ANGLE_VALIDATION_ERROR(GL_INVALID_OPERATION, kNoDefinedClearConversion);
             return false;