migration/rdma: Remove redundant migration_in_postcopy checks

Since we have disabled RDMA + postcopy, it's safe to remove
the migration_in_postcopy() that follows the migrate_rdma().

Reviewed-by: Peter Xu <[email protected]>
Signed-off-by: Li Zhijian <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Fabiano Rosas <[email protected]>

Author: zhijianli88

migration/rdma.c

@@ -3284,7 +3284,7 @@ static int qemu_rdma_save_page(QEMUFile *f, ram_addr_t block_offset,
 int rdma_control_save_page(QEMUFile *f, ram_addr_t block_offset,
                            ram_addr_t offset, size_t size)
 {
-    if (!migrate_rdma() || migration_in_postcopy()) {
+    if (!migrate_rdma()) {
         return RAM_SAVE_CONTROL_NOT_SUPP;
     }
 
@@ -3829,7 +3829,7 @@ int rdma_block_notification_handle(QEMUFile *f, const char *name)
 
 int rdma_registration_start(QEMUFile *f, uint64_t flags)
 {
-    if (!migrate_rdma() || migration_in_postcopy()) {
+    if (!migrate_rdma()) {
         return 0;
     }
 
@@ -3861,7 +3861,7 @@ int rdma_registration_stop(QEMUFile *f, uint64_t flags)
     RDMAControlHeader head = { .len = 0, .repeat = 1 };
     int ret;
 
-    if (!migrate_rdma() || migration_in_postcopy()) {
+    if (!migrate_rdma()) {
         return 0;
     }