MAINTAINERS: Remove myself as reviewer from Live Migration

I am currently focusing in kernel development, so I will probably not be
of much help in reviewing general Live Migration changes.

For above reason I am removing my Reviewer status from Migration and RDMA
Migration.

Signed-off-by: Leonardo Bras <leobras@redhat.com>
Link: https://lore.kernel.org/r/20231221170739.332378-1-leobras@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 56464cd..00ec1f7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3356,7 +3356,6 @@
 Migration
 M: Peter Xu <peterx@redhat.com>
 M: Fabiano Rosas <farosas@suse.de>
-R: Leonardo Bras <leobras@redhat.com>
 S: Maintained
 F: hw/core/vmstate-if.c
 F: include/hw/vmstate-if.h
@@ -3375,7 +3374,6 @@
 RDMA Migration
 R: Li Zhijian <lizhijian@fujitsu.com>
 R: Peter Xu <peterx@redhat.com>
-R: Leonardo Bras <leobras@redhat.com>
 S: Odd Fixes
 F: migration/rdma*