rbd: remove luminous and mimic build tags

Luminous and mimic have not been supported for a few releases now.
There's no need to keep these build tags any more.

Signed-off-by: John Mulligan <jmulligan@redhat.com>

rbd/features_nautilus.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 package rbd
 
 // #include <rbd/librbd.h>

rbd/features_nautilus_test.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 package rbd
 
 import (

rbd/namespace_nautilus.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 //
 // Ceph Nautilus is the first release that includes rbd_namespace_create(),
 // rbd_namespace_remove(), rbd_namespace_exists() and rbd_namespace_list().

rbd/namespace_nautilus_test.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 package rbd
 
 import (

rbd/pool_nautilus.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 //
 // Ceph Nautilus is the first release that includes rbd_pool_metadata_get(),
 // rbd_pool_metadata_set() and rbd_pool_metadata_remove().

rbd/pool_nautilus_test.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 package rbd
 
 import (

rbd/rbd_nautilus.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 //
 // Ceph Nautilus is the first release that includes rbd_list2() and
 // rbd_get_create_timestamp().

rbd/rbd_nautilus_test.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 package rbd
 
 import (

rbd/snapshot_namespace.go

@@ -1,6 +1,3 @@
-//go:build !luminous
-// +build !luminous
-
 //
 // Ceph Mimic introduced rbd_snap_get_namespace_type().
 

rbd/snapshot_namespace_test.go

@@ -1,6 +1,3 @@
-//go:build !luminous
-// +build !luminous
-
 package rbd
 
 import (

rbd/snapshot_nautilus.go

@@ -1,6 +1,3 @@
-//go:build !luminous && !mimic
-// +build !luminous,!mimic
-
 //
 // Ceph Nautilus introduced rbd_get_parent() and deprecated rbd_get_parent_info().
 // Ceph Nautilus introduced rbd_list_children3() and deprecated rbd_list_children().