Delete FUNDING.yml (#7363)

Deleting as redundant with FUNDING.yml present in organization repo at https://github.com/ultralytics/.github

Delete FUNDING.yml (#7363)
db36f13c · Glenn Jocher · GitHub · 1993efd5 · 1993efd5
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
-# These are supported funding model platforms
-
-github: glenn-jocher
-patreon: ultralytics
-open_collective: ultralytics