Drop Manager member current_cursor

The member current_cursor is used only locally in a single function, and
always assigned before usage.

Author: cgzones

src/netlog/netlog-manager.c

@@ -263,6 +263,7 @@ static int load_cursor_state(Manager *m) {
 }
 
 static int process_journal_input(Manager *m) {
+        _cleanup_free_ char *cursor = NULL;
         int r;
 
         assert(m);
@@ -278,7 +279,6 @@ static int process_journal_input(Manager *m) {
 
                 r = manager_read_journal_input(m);
                 if (r < 0) {
-                        m->current_cursor = mfree(m->current_cursor);
                         /* Can't send the message. Seek one entry back. */
                         r = sd_journal_previous(m->journal);
                         if (r < 0)
@@ -288,15 +288,15 @@ static int process_journal_input(Manager *m) {
                 }
         }
 
-        r = sd_journal_get_cursor(m->journal, &m->current_cursor);
+        r = sd_journal_get_cursor(m->journal, &cursor);
         if (r < 0) {
                 log_error_errno(r, "Failed to get cursor: %m");
-                m->current_cursor = mfree(m->current_cursor);
+                cursor = mfree(cursor);
         }
 
         free(m->last_cursor);
-        m->last_cursor = m->current_cursor;
-        m->current_cursor = NULL;
+        m->last_cursor = cursor;
+        cursor = NULL;
 
         return update_cursor_state(m);
 }
@@ -596,7 +596,6 @@ void manager_free(Manager *m) {
         free(m->tls);
 
         free(m->last_cursor);
-        free(m->current_cursor);
 
         free(m->state_file);
         free(m->dir);

src/netlog/netlog-manager.h

@@ -66,7 +66,6 @@ struct Manager {
 
         char *state_file;
         char *last_cursor;
-        char *current_cursor;
         char *structured_data;
         char *dir;
         char *namespace;