follow grammar: removed closer

pocketsphinxAdapter/grammar/followMe/followMe.jsgf

 #JSGF V1.0;
 grammar ToBI_followMe;
-public <statement> = [tobi] [please] (<followMe> | <elevator> | <closer> | <leave>) [please] [tobi];
+public <statement> = [tobi] [please] (<followMe> | <elevator> | <leave>) [please] [tobi];
 
 <followMe> = follow me [into the elevator];
 <elevator> = [(this is) | ([lets] go into)] [an | the] elevator;
-<closer> = come (closer | close);
 <leave> = leave [the elevator];