lib: remove redundant code

Closes https://github.com/curl/curl/pull/6576

lib/ftplistparser.c

@@ -966,7 +966,6 @@ size_t Curl_ftp_parselist(char *buffer, size_t size, size_t nmemb,
           else if(c == '\n') {
             parser->offsets.filename = parser->item_offset;
             finfo->b_data[finfo->b_used - 1] = 0;
-            parser->offsets.filename = parser->item_offset;
             result = ftp_pl_insert_finfo(data, infop);
             if(result) {
               parser->error = result;

lib/memdebug.c

@@ -91,15 +91,13 @@ static bool countcheck(const char *func, int line, const char *source)
      should not be made */
   if(memlimit && source) {
     if(!memsize) {
-      if(source) {
-        /* log to file */
-        curl_dbg_log("LIMIT %s:%d %s reached memlimit\n",
-                     source, line, func);
-        /* log to stderr also */
-        fprintf(stderr, "LIMIT %s:%d %s reached memlimit\n",
-                source, line, func);
-        fflush(curl_dbg_logfile); /* because it might crash now */
-      }
+      /* log to file */
+      curl_dbg_log("LIMIT %s:%d %s reached memlimit\n",
+                   source, line, func);
+      /* log to stderr also */
+      fprintf(stderr, "LIMIT %s:%d %s reached memlimit\n",
+              source, line, func);
+      fflush(curl_dbg_logfile); /* because it might crash now */
       errno = ENOMEM;
       return TRUE; /* RETURN ERROR! */
     }

lib/sendf.c

@@ -498,9 +498,7 @@ static CURLcode pausewrite(struct Curl_easy *data,
     /* store this information in the state struct for later use */
     Curl_dyn_init(&s->tempwrite[i].b, DYN_PAUSE_BUFFER);
     s->tempwrite[i].type = type;
-
-    if(newtype)
-      s->tempcount++;
+    s->tempcount++;
   }
 
   if(Curl_dyn_addn(&s->tempwrite[i].b, (unsigned char *)ptr, len))

lib/tftp.c

@@ -231,12 +231,6 @@ static CURLcode tftp_set_timeouts(struct tftp_state_data *state)
     if(state->retry_max < 1)
       /* avoid division by zero below */
       state->retry_max = 1;
-
-    /* Compute the re-start interval to suit the timeout */
-    state->retry_time = (int)timeout/state->retry_max;
-    if(state->retry_time<1)
-      state->retry_time = 1;
-
   }
   else {
     if(timeout_ms > 0)

lib/vquic/ngtcp2.c

@@ -1788,7 +1788,6 @@ static CURLcode ng_flush_egress(struct Curl_easy *data,
   ngtcp2_path_storage_zero(&ps);
 
   for(;;) {
-    outlen = -1;
     veccnt = 0;
     stream_id = -1;
     fin = 0;

lib/vtls/gskit.c

@@ -700,7 +700,6 @@ static CURLcode gskit_connect_step1(struct Curl_easy *data,
   struct ssl_connect_data *connssl = &conn->ssl[sockindex];
   gsk_handle envir;
   CURLcode result;
-  int rc;
   const char * const keyringfile = SSL_CONN_CONFIG(CAfile);
   const char * const keyringpwd = SSL_SET_OPTION(key_passwd);
   const char * const keyringlabel = SSL_SET_OPTION(primary.clientcert);