remove table and confirm from pollen challenge grammar

psGrammar/challenge/pollen/challenge.jsgf

 #JSGF V1.0;
 grammar pollen;
-public <orderstring> = [<robot>] (<receiveorderstring> | <tablestring>);
+public <orderstring> = [<robot>] <receiveorderstring>;
 
 <receiveorderstring> = bring [me] [a] <drink>;
-<tablestring> = table <table>;
-<table> = (a | b);
 
-<drink> = (tea | coke | fanta | water);
-<number> = (one | two | three | four | five | six | seven | eight | nine | zero);
+<drink> = (coke | malz | lemonade | water | ice tea | coffee);
 
-public <confirm> = <confirm_yes> | <confirm_no>;
-
-public <confirm_yes> = <robot> <yes_words>;
-public <confirm_no> = <robot> <no_words>; 
-
-<yes_words> = (yes) | (confirmed);
-<no_words> = (no);
 <robot> = (tobi) | (robot) | (biron) | (pepper) | (tiago) | (floka) | (meka);