Revert of Improve GLSL integer support

src/gpu/gl/GrGLNoOpInterface.cpp

Index: src/gpu/gl/GrGLNoOpInterface.cpp
diff --git a/src/gpu/gl/GrGLNoOpInterface.cpp b/src/gpu/gl/GrGLNoOpInterface.cpp
index f08d737d588183bdb661f6aa7f5f5bf3d60c6c9f..113c47d05428dfc4684936b0e6f65605d0c7a821 100644
--- a/src/gpu/gl/GrGLNoOpInterface.cpp
+++ b/src/gpu/gl/GrGLNoOpInterface.cpp
@@ -392,13 +392,6 @@
 }
 
  GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttrib4fv(GrGLuint indx, const GrGLfloat* values) {
-}
-
-GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttribIPointer(GrGLuint indx,
-                                                        GrGLint size,
-                                                        GrGLenum type,
-                                                        GrGLsizei stride,
-                                                        const GrGLvoid* ptr) {
 }
 
 GrGLvoid GR_GL_FUNCTION_TYPE noOpGLVertexAttribPointer(GrGLuint indx,