AGI: PREAGI: Fix MICKEY saves always loading to Earth

Fixes loading a saved game and always returning to Earth instead of the
planet the game was saved on.

Unclear if this was original behavior, but we already save the current
planet and load it back, so it seems wrong to discard that and send the
player to a different planet instead.

engines/agi/preagi/mickey.cpp

@@ -1013,14 +1013,11 @@ bool MickeyEngine::loadGame() {
 			}
 
 			saveVersion = infile->readByte();
-			if (saveVersion < 2) {
-				warning("The planet data in this save game is corrupted. Load aborted");
+			if (saveVersion != MSA_SAVEGAME_VERSION) { // currently only one valid version
+				warning("MickeyEngine::loadGame unknown save version: %d", saveVersion);
 				return false;
 			}
 
-			if (saveVersion != MSA_SAVEGAME_VERSION)
-				warning("Old save game version (%d, current version is %d). Will try and read anyway, but don't be surprised if bad things happen", saveVersion, MSA_SAVEGAME_VERSION);
-
 			_gameStateMickey.iRoom = infile->readByte();
 			_gameStateMickey.iPlanet = infile->readByte();
 			_gameStateMickey.iDisk = infile->readByte();
@@ -1426,9 +1423,7 @@ void MickeyEngine::intro() {
 	_gameStateMickey.fIntro = true;
 	if (chooseY_N(IDO_MSA_LOAD_GAME[0], true)) {
 		if (loadGame()) {
-			_gameStateMickey.iPlanet = IDI_MSA_PLANET_EARTH;
 			_gameStateMickey.fIntro = false;
-			_gameStateMickey.iRoom = IDI_MSA_PIC_SHIP_CORRIDOR;
 			return;
 		}
 	}