Clean up three sets of warnings:

* Ensure all switches have a default when working with enums.
* Match defined new[] calls with delete[] calls.
* Respect variable initialization order.

src/NotesLoaderSSC.cpp

@@ -912,6 +912,7 @@ bool SSCLoader::LoadNoteDataFromSimfile( const RString & cachePath, Steps &out )
 						out.SetSMNoteData(matcher);
 						out.TidyUpData();
 						return true;
+					default:
 						break;
 				}
 			}
@@ -927,6 +928,8 @@ bool SSCLoader::LoadNoteDataFromSimfile( const RString & cachePath, Steps &out )
 					case LNDID_notedata:
 						tryingSteps = true;
 						break;
+					default:
+						break;
 				}
 			}
 		}