DEVTOOLS-7936: Remove redundant chgrp from publish

This removes the redundant chgrp command from the publish step when
pushing packages to our public repositories. The directory being pushed
to has the setgid bit set on it, which means that we don't need to force
the group using this command. Further, attempting to do so resulted in
an error as the cfsync user does not have the appropriate permissions to
use the chgrp command.

Author: tvarney

Makefile

@@ -89,7 +89,7 @@ define publish_package
 	for HOST in $(CF_PKG_HOSTS); do \
 		ssh-keyscan -t rsa $$HOST >> ~/.ssh/known_hosts; \
 		scp -4 cloudflared*.$(1) cfsync@$$HOST:/state/cf-pkg/staging/$(2)/$(TARGET_PUBLIC_REPO)/cloudflared/; \
-		ssh cfsync@$$HOST 'chgrp cf /state/cf-pkg/staging/$(2)/$(TARGET_PUBLIC_REPO)/cloudflared/*.$(1) && chmod g+w /state/cf-pkg/staging/$(2)/$(TARGET_PUBLIC_REPO)/cloudflared/*.$(1)'; \
+		ssh cfsync@$$HOST 'chmod g+w /state/cf-pkg/staging/$(2)/$(TARGET_PUBLIC_REPO)/cloudflared/*.$(1)'; \
 	done
 endef