update maintainers (-rgreinho) (#1325)

Signed-off-by: Brandon Lum <[email protected]>

Author: lumjjb

MAINTAINERS

@@ -8,5 +8,4 @@
 "lumjjb", "Brandon Lum", "Google", "lumb@google.com"
 "pxp928", "Parth Patel", "Kusari", "parth@kusari.dev"
 "SantiagoTorres", "Santiago Torres", "Purdue University", "santiagotorres@purdue.edu"
-"rgreinho", "Rémy Greinhofer", "Citi", "remy.greinhofer@gmail.com"
 "jeffmendoza", "Jeff Mendoza", "Kusari", "jlm@jlm.name"