Revert "libssh: no data pointer == nothing to do"

This reverts commit c98ee5f since commit f3ce387 fixed the
problem in a more generic way.

lib/ssh-libssh.c

@@ -554,19 +554,14 @@ static CURLcode myssh_statemach_act(struct connectdata *conn, bool *block)
 {
   CURLcode result = CURLE_OK;
   struct Curl_easy *data = conn->data;
-  struct SSHPROTO *protop;
+  struct SSHPROTO *protop = data->req.protop;
   struct ssh_conn *sshc = &conn->proto.sshc;
   int rc = SSH_NO_ERROR, err;
   char *new_readdir_line;
   int seekerr = CURL_SEEKFUNC_OK;
   const char *err_msg;
   *block = 0;                   /* we're not blocking by default */
-  if(!data) {
-    state(conn, SSH_STOP);
-    return CURLE_OK;
-  }
 
-  protop = data->req.protop;
   do {
 
     switch(sshc->state) {
@@ -1993,10 +1988,6 @@ static CURLcode myssh_block_statemach(struct connectdata *conn,
   struct ssh_conn *sshc = &conn->proto.sshc;
   CURLcode result = CURLE_OK;
   struct Curl_easy *data = conn->data;
-  if(!data) {
-    state(conn, SSH_STOP);
-    return CURLE_OK;
-  }
 
   while((sshc->state != SSH_STOP) && !result) {
     bool block;