Update OWNERS to reflect current contributors (#899)

Signed-off-by: Jonathan West <jonwest@redhat.com>

Author: jgwest

OWNERS

@@ -5,7 +5,6 @@ approvers:
 - chetan-rns
 - jannfis
 - jgwest
-- iam-veeramalla
 - jopit
 - anandf
 - varshab1210
@@ -16,7 +15,6 @@ reviewers:
 - chetan-rns
 - keithchong
 - jannfis
-- iam-veeramalla
 - jgwest
 - anandrkskd
 - varshab1210 

openshift-ci/build-root/OWNERS

@@ -1,20 +1,16 @@
 # See the OWNERS docs: https://git.k8s.io/community/contributors/guide/owners.md
 
 approvers:
-- sbose78
 - wtam2018
-- bigkevmcd
 - chetan-rns
+- anandf
+- varshab1210
+- adamsaleh
 
 reviewers:
-- sbose78
 - wtam2018
-- bigkevmcd
 - chetan-rns
-- mitchharpur
 - keithchong
-- tetchel
-- amitkrout
-- jaideepr97
-- gaganhegde
-- dewan-ahmed
+- anandf
+- varshab1210
+- adamsaleh