[fix] fix tn, remove useless mapping in english tn (#236)

Author: xingchensong

tn/english/data/whitelist/alternatives.tsv

@@ -5,10 +5,6 @@ Ms.	Miss
 Mr	Mister
 Mrs	Misses
 Ms	Miss
-AC	air conditioning
-AC	air conditioner
-AC	air conditioners
-AC	alternating current
 &Co.	and Co.
 &Co.	and Company
 Mon	Monday
@@ -23,14 +19,8 @@ Sun	Sunday
 =	equals
 #	number
 No.	number
-No	number
-NO	number
 NO.	number
-NO	nitrogen monoxide
-NO	NO
-NO.	NO.
-No.	No.
-No	No
-VOL	Volume
+NO.	number
+No.	number
 VOL.	Volume
 TV	Television