Removing unneeded includes (#6852)

#changelog #gl

Author: dimitre

libs/openFrameworks/gl/ofShader.cpp

@@ -6,9 +6,6 @@
 #include "ofTexture.h"
 #include "ofMatrix4x4.h"
 #include "ofMatrix3x3.h"
-#include "ofVec2f.h"
-#include "ofVec3f.h"
-#include "ofVec4f.h"
 #include "ofParameterGroup.h"
 #include "ofParameter.h"
 #include "ofBufferObject.h"