security: Don't skip labelling for network disks

A network disk might actually be backed by local storage. Also the path
iterator actually handles networked disks well now so remove the code
that skips the labelling in dac and selinux security driver.

src/security/security_dac.c

@@ -333,9 +333,6 @@ virSecurityDACSetSecurityImageLabel(virSecurityManagerPtr mgr,
     if (!priv->dynamicOwnership)
         return 0;
 
-    if (virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_NETWORK)
-        return 0;
-
     secdef = virDomainDefGetSecurityLabelDef(def, SECURITY_DAC_NAME);
 
     if (secdef && secdef->norelabel)

src/security/security_selinux.c

@@ -1255,9 +1255,6 @@ virSecuritySELinuxSetSecurityImageLabel(virSecurityManagerPtr mgr,
     if (!cbdata.secdef || cbdata.secdef->norelabel)
         return 0;
 
-    if (virDomainDiskGetType(disk) == VIR_STORAGE_TYPE_NETWORK)
-        return 0;
-
     return virDomainDiskDefForeachPath(disk,
                                        true,
                                        virSecuritySELinuxSetSecurityFileLabel,