[CODEOWNERS] Remove invalid owner (#53168)

The focus of these changes is to remove an owner flagged by the linter as no longer valid.

Author: jsquire

.github/CODEOWNERS

@@ -1112,10 +1112,7 @@
 # ServiceOwners:                                                   @shaktichetan23
 
 # PRLabel: %PureStorage
-/sdk/purestorageblock/Azure.ResourceManager.*/                     @deepakmauryams
-
-# ServiceLabel: %PureStorage %Mgmt
-# ServiceOwners:                                                   @deepakmauryams
+/sdk/purestorageblock/Azure.ResourceManager.*/                     @ArthurMa1978 @ArcturusZhang
 
 # PRLabel: %Quota
 /sdk/quota/Azure.ResourceManager.*/                                @tejasm-microsoft