Merge pull request #11250 from takahirox/FixStandardShader

Remove unnecessary "#include <specularmap_fragment>" from meshphysical_frag.glsl

src/renderers/shaders/ShaderLib/meshphysical_frag.glsl

@@ -57,7 +57,6 @@ void main() {
 	#include <color_fragment>
 	#include <alphamap_fragment>
 	#include <alphatest_fragment>
-	#include <specularmap_fragment>
 	#include <roughnessmap_fragment>
 	#include <metalnessmap_fragment>
 	#include <normal_flip>

src/renderers/shaders/ShaderLib/meshphysical_vert.glsl

@@ -17,7 +17,6 @@ varying vec3 vViewPosition;
 #include <morphtarget_pars_vertex>
 #include <skinning_pars_vertex>
 #include <shadowmap_pars_vertex>
-#include <specularmap_pars_fragment>
 #include <logdepthbuf_pars_vertex>
 #include <clipping_planes_pars_vertex>