qerror: drop QERR_SOCKET_CONNECT_IN_PROGRESS

Unused since last commit.
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>

qerror.c

@@ -308,10 +308,6 @@ static const QErrorStringTable qerror_table[] = {
         .error_fmt = QERR_VNC_SERVER_FAILED,
         .desc      = "Could not start VNC server on %(target)",
     },
-    {
-        .error_fmt = QERR_SOCKET_CONNECT_IN_PROGRESS,
-        .desc      = "Connection can not be completed immediately",
-    },
     {
         .error_fmt = QERR_SOCKET_CONNECT_FAILED,
         .desc      = "Failed to connect to socket",

qerror.h

@@ -240,9 +240,6 @@ char *qerror_format(const char *fmt, QDict *error);
 #define QERR_VNC_SERVER_FAILED \
     "{ 'class': 'VNCServerFailed', 'data': { 'target': %s } }"
 
-#define QERR_SOCKET_CONNECT_IN_PROGRESS \
-    "{ 'class': 'SockConnectInprogress', 'data': {} }"
-
 #define QERR_SOCKET_CONNECT_FAILED \
     "{ 'class': 'SockConnectFailed', 'data': {} }"