drop 0004-curl-7.21.3-bz650255.patch

This has been already fixed upstream (commits 5c7c9a7 and 5965d45).

0004-curl-7.21.3-bz650255.patch

@@ -1,19 +0,0 @@
- lib/url.c |    5 +++++
- 1 files changed, 5 insertions(+), 0 deletions(-)
-
-diff --git a/lib/url.c b/lib/url.c
-index 1b65a92..4e2bce6 100644
---- a/lib/url.c
-+++ b/lib/url.c
-@@ -2910,6 +2910,11 @@
-         check->data = data;
-         infof(data, "Connection #%ld seems to be dead!\n", i);
- 
-+        if(check->protocol & PROT_FTP)
-+          /* FTP: avoid sending QUIT and waiting for response on a dead
-+           * connection */
-+          check->proto.ftpc.ctl_valid = FALSE;
-+
-         /* disconnect resources */
-         Curl_disconnect(check, /* dead_connection */ TRUE);
-         data->state.connc->connects[i]=NULL; /* nothing here */

curl.spec

@@ -8,9 +8,6 @@ Source: http://curl.haxx.se/download/%{name}-%{version}.tar.lzma
 Source2: curlbuild.h
 Source3: hide_selinux.c
 
-# do not send QUIT to a dead FTP control connection (#650255)
-Patch4: 0004-curl-7.21.3-bz650255.patch
-
 # Avoid buffer overflow report from glibc with FORTIFY_SOURCE
 Patch5: 0005-curl-7.21.3-tftpd-buffer-overflow.patch
 
@@ -110,7 +107,6 @@ for f in CHANGES README; do
 done
 
 # upstream patches (not yet applied)
-%patch4 -p1
 %patch5 -p1
 
 # Fedora patches