Code refactoring: remove unneeded variables

BUG=angleproject:1996

Change-Id: If635bf836251f90ec40d791b5f80d43f751aad9b
Reviewed-on: https://chromium-review.googlesource.com/476079
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/libANGLE/validationES.cpp b/src/libANGLE/validationES.cpp
index 97ef52b..a4609a5 100644
--- a/src/libANGLE/validationES.cpp
+++ b/src/libANGLE/validationES.cpp
@@ -5232,7 +5232,10 @@
                                                  GLsizei *numParams)
 {
     // Only one parameter is returned from glGetFramebufferAttachmentParameteriv
-    *numParams = 1;
+    if (numParams)
+    {
+        *numParams = 1;
+    }
 
     if (!ValidFramebufferTarget(target))
     {
@@ -5546,7 +5549,10 @@
 bool ValidateGetProgramiv(Context *context, GLuint program, GLenum pname, GLsizei *numParams)
 {
     // Currently, all GetProgramiv queries return 1 parameter
-    *numParams = 1;
+    if (numParams)
+    {
+        *numParams = 1;
+    }
 
     Program *programObject = GetValidProgram(context, program);
     if (!programObject)