Remove dead code in token enumerator

Since we always search for the nearest separator (and strip them from
the front of the next token) there can't be any separators left at the
end of a token.

src/libstrongswan/collections/enumerator.c

@@ -264,7 +264,7 @@ static bool enumerate_token_enum(token_enum_t *this, char **token)
 		}
 	}
 
-	/* trim trailing characters/separators */
+	/* trim trailing characters */
 	pos--;
 	while (pos >= *token)
 	{
@@ -278,17 +278,7 @@ static bool enumerate_token_enum(token_enum_t *this, char **token)
 			}
 			trim++;
 		}
-		sep = this->sep;
-		while (*sep)
-		{
-			if (*sep == *pos)
-			{
-				*(pos--) = '\0';
-				break;
-			}
-			sep++;
-		}
-		if (!*trim && !*sep)
+		if (!*trim)
 		{
 			break;
 		}