Remove unnecessary pointer checks.

VertexProgram and PixelProgram always have a shader.

Bug chromium:805881

Change-Id: I0a27b4e7a0bc0ae591d89eb295e215bd421416fb
Reviewed-on: https://swiftshader-review.googlesource.com/16749
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/src/Shader/VertexProgram.cpp b/src/Shader/VertexProgram.cpp
index 960772f..4f8ba1a 100644
--- a/src/Shader/VertexProgram.cpp
+++ b/src/Shader/VertexProgram.cpp
@@ -39,12 +39,12 @@
 		loopDepth = -1;
 		enableStack[0] = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
 
-		if(shader && shader->containsBreakInstruction())
+		if(shader->containsBreakInstruction())
 		{
 			enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
 		}
 
-		if(shader && shader->containsContinueInstruction())
+		if(shader->containsContinueInstruction())
 		{
 			enableContinue = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF);
 		}