Remove ignore_value or void from unlink calls

There seems to be no need to add the ignore_value wrapper or
caste with (void) to the unlink() calls, so let's just remove
them. I assume at one point in time Coverity complained. So,
let's just be consistent - those that care to check the return
status can and those that don't can just have the naked unlink.

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>

src/conf/virsecretobj.c

@@ -666,7 +666,7 @@ virSecretObjDeleteData(virSecretObjPtr obj)
 {
     /* The configFile will already be removed, so secret won't be
      * loaded again if this fails */
-    (void)unlink(obj->base64File);
+    unlink(obj->base64File);
 }
 
 

src/nwfilter/nwfilter_dhcpsnoop.c

@@ -1923,7 +1923,7 @@ virNWFilterSnoopLeaseFileRefresh(void)
     if (rename(TMPLEASEFILE, LEASEFILE) < 0) {
         virReportSystemError(errno, _("rename(\"%s\", \"%s\")"),
                              TMPLEASEFILE, LEASEFILE);
-        ignore_value(unlink(TMPLEASEFILE));
+        unlink(TMPLEASEFILE);
     }
     virAtomicIntSet(&virNWFilterSnoopState.wLeases, 0);
 

src/qemu/qemu_capabilities.c

@@ -4304,7 +4304,7 @@ virQEMUCapsInitQMPCommandAbort(virQEMUCapsInitQMPCommandPtr cmd)
     cmd->cmd = NULL;
 
     if (cmd->monpath)
-        ignore_value(unlink(cmd->monpath));
+        unlink(cmd->monpath);
 
     virDomainObjEndAPI(&cmd->vm);
 

src/storage/storage_driver.c

@@ -84,7 +84,7 @@ storagePoolRefreshFailCleanup(virStorageBackendPtr backend,
     virErrorPtr orig_err = virSaveLastError();
 
     if (stateFile)
-        ignore_value(unlink(stateFile));
+        unlink(stateFile);
     if (backend->stopPool)
         backend->stopPool(obj);
     if (orig_err) {
@@ -142,7 +142,7 @@ storagePoolUpdateStateCallback(virStoragePoolObjPtr obj,
         virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("Failed to initialize storage pool '%s': %s"),
                        def->name, virGetLastErrorMessage());
-        ignore_value(unlink(stateFile));
+        unlink(stateFile);
         active = false;
     }
 

src/util/virfilecache.c

@@ -161,7 +161,7 @@ virFileCacheLoad(virFileCachePtr cache,
 
     if (!cache->handlers.isValid(loadData, cache->priv)) {
         VIR_DEBUG("Outdated cached capabilities '%s' for '%s'", file, name);
-        ignore_value(unlink(file));
+        unlink(file);
         ret = 0;
         goto cleanup;
     }

src/util/virnetdev.c

@@ -2161,7 +2161,7 @@ virNetDevReadNetConfig(const char *linkdev, int vf,
     }
 
     /* we won't need the file again */
-    ignore_value(unlink(filePath));
+    unlink(filePath);
 
     ret = 0;
  cleanup: