Delete ContributorNominationTemplate

Removed and added through the proper mechanism

.github/ISSUE_TEMPLATE/ContributorNominationTemplate

@@ -1,13 +0,0 @@
-## Nomination Details
-
-- **Nominee:** <name>
-- **Role** <Reviewer or Maintainer> 
-
-## Why this person is being nominated
-
-- <brief description>
-- <supporting metrics>
-
-## Outcome (For SIG Facilitator)
-
-**Voting Results** <Approved or Denied>