Revert "bugfix: assetTypeManager becomes unavalible becomes of RegisterMods also might be a potentaial race condition"

This reverts commit 9cffcbb.

Author: pollend

engine/src/main/java/org/terasology/engine/core/TerasologyEngine.java

@@ -14,7 +14,6 @@
 import org.terasology.engine.context.internal.ContextImpl;
 import org.terasology.engine.core.bootstrap.EnvironmentSwitchHandler;
 import org.terasology.engine.core.modes.GameState;
-import org.terasology.engine.core.modes.StateLoading;
 import org.terasology.engine.core.module.ExternalApiWhitelist;
 import org.terasology.engine.core.module.ModuleManager;
 import org.terasology.engine.core.paths.PathManager;
@@ -469,9 +468,7 @@ public boolean tick() {
             return false;
         }
 
-        // environment switch occurs during loading assetTypeManager can become invalid.
-        // potential race condition RegisterMods#step so make sure the current state is not loading
-        if (assetTypeManager instanceof AutoReloadAssetTypeManager && !(currentState instanceof StateLoading) ) {
+        if (assetTypeManager instanceof AutoReloadAssetTypeManager) {
             ((AutoReloadAssetTypeManager) assetTypeManager).reloadChangedAssets();
         }