Remove bogus -K option from pg_dump.

I added it to the getopt call by accident in commit
691e595d.

Amit Kapila

src/bin/pg_dump/pg_dump.c

@@ -402,7 +402,7 @@ main(int argc, char **argv)
 		}
 	}
 
-	while ((c = getopt_long(argc, argv, "abcCd:E:f:F:h:ij:K:n:N:oOp:RsS:t:T:U:vwWxZ:",
+	while ((c = getopt_long(argc, argv, "abcCd:E:f:F:h:ij:n:N:oOp:RsS:t:T:U:vwWxZ:",
 							long_options, &optindex)) != -1)
 	{
 		switch (c)