Editor: remove TOOLS_ENABLED guards

For code  inside editor/ `#ifdef TOOLS_ENABLED`
is always true so those checks are redundant.

editor/collada/collada.cpp

@@ -28,8 +28,6 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifdef TOOLS_ENABLED
-
 #include "collada.h"
 
 #include <stdio.h>
@@ -2576,5 +2574,3 @@ Error Collada::load(const String &p_path, int p_flags) {
 
 Collada::Collada() {
 }
-
-#endif