CComponents: replace clear() with clearFbData(), remove cleanCCForm()

clear() replaces now clearCCItems() and cleanCCForm() is superfluous.

src/gui/components/cc_frm_icons.cpp

@@ -108,7 +108,7 @@ int CComponentsIconForm::getIconId(const std::string& icon_name)
 //to remove old items before add new icons, otherwise icons will be appended.
 void CComponentsIconForm::removeAllIcons()
 {
-	clearCCItems();
+	clear();
 	v_icons.clear();
 }