drop some useless return statements

code/botlib/be_ai_char.c

@@ -760,14 +760,11 @@ void Characteristic_String(int character, int index, char *buf, int size)
 	{
 		strncpy(buf, ch->c[index].value.string, size-1);
 		buf[size-1] = '\0';
-		return;
 	} //end if
 	else
 	{
 		botimport.Print(PRT_ERROR, "characteristic %d is not a string\n", index);
-		return;
 	} //end else if
-	return;
 } //end of the function Characteristic_String
 //===========================================================================
 //

code/botlib/be_ai_chat.c

@@ -1506,7 +1506,6 @@ void BotMatchVariable(bot_match_t *match, int variable, char *buf, int size)
 	{
 		strcpy(buf, "");
 	} //end else
-	return;
 } //end of the function BotMatchVariable
 //===========================================================================
 //

code/botlib/be_ai_goal.c

@@ -691,7 +691,6 @@ void BotGoalName(int number, char *name, int size)
 		} //end for
 	} //end for
 	strcpy(name, "");
-	return;
 } //end of the function BotGoalName
 //===========================================================================
 //