Remove Dixsie as a Maintainer

Dixsie is moving to another project.
Thank you Dixsie for all your work on the project!

Change-Id: I0d0a0127d83247a5b25c0f75a19e0b01462dd4e5
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/OWNERS b/OWNERS
index ea66994..f3f7f3b 100644
--- a/OWNERS
+++ b/OWNERS
@@ -32,7 +32,6 @@
 # data within them will be kept sorted.
 
 owners:
-- dixsie@ibm.com
 - gmills@linux.vnet.ibm.com
 - sandeepa.singh@ibm.com
 
@@ -41,9 +40,6 @@
 matchers:
 
 openbmc:
-- name: Dixsie Wolmers
-  email: dixsie@ibm.com
-  discord: Dixsie
 - name: Gunnar Mills
   email: gmills@linux.vnet.ibm.com
   discord: GunnarM