Don't hide the automap in Help and Chat Log (#4379)

This was necessary in the past due to stippled transparency but we use
blended transparency now.

Fixes #4355

Source/diablo.cpp

@@ -1307,7 +1307,6 @@ void HelpKeyPressed()
 			stream_stop();
 		}
 		QuestLogIsOpen = false;
-		AutomapActive = false;
 		CancelCurrentDiabloMsg();
 		gamemenu_off();
 		DisplayHelp();

Source/qol/chatlog.cpp

@@ -105,7 +105,6 @@ void ToggleChatLog()
 		}
 		QuestLogIsOpen = false;
 		HelpFlag = false;
-		AutomapActive = false;
 		CancelCurrentDiabloMsg();
 		gamemenu_off();
 		SkipLines = 0;