Remove duplicate "v" snippet

Author: Simeon F. Willbanks

snippets/go.snippets

@@ -213,9 +213,6 @@ snippet sp
 # true
 snippet t
 	true
-# variable declaration
-snippet v
-	var ${1:t} ${0:string}
 # goroutine named function
 snippet g
 	go ${1:funcName}(${0})