Some clean up and small fixes

modules/iswa/rendering/textureplane.cpp

@@ -43,7 +43,6 @@ namespace openspace {
 TexturePlane::TexturePlane(const ghoul::Dictionary& dictionary)
     :CygnetPlane(dictionary)
 {
-    _id = id();
     std::string name;
     dictionary.getValue("Name", name);
     setName(name);
@@ -71,9 +70,6 @@ bool TexturePlane::deinitialize(){
     return true;
 }
 
-// void TexturePlane::render(const RenderData& data){} //moved to CygnetPlane
-// void TexturePlane::update(const UpdateData& data){} //moved to CygnetPlane
-
 bool TexturePlane::loadTexture() {
     if(_memorybuffer != ""){
 
@@ -119,9 +115,4 @@ bool TexturePlane::updateTexture(){
     return false;
 }
 
-int TexturePlane::id(){
-        static int id = 0;
-        return id++;
-}
-
 }// namespace openspace