chore: Remove unused SQL functions (#5857)

* chore: Remove unused sql functions
- GetProvisionerDaemonByID
- UpdateProvisionerDaemonByID
- GetUserGroups
- GetWorkspaceCountByUserID
- GetLatestAgentStat

coderd/database/queries/agentstats.sql

@@ -12,11 +12,8 @@ INSERT INTO
 VALUES
 	($1, $2, $3, $4, $5, $6, $7) RETURNING *;
 
--- name: GetLatestAgentStat :one
-SELECT * FROM agent_stats WHERE agent_id = $1 ORDER BY created_at DESC LIMIT 1; 
-
 -- name: GetTemplateDAUs :many
-SELECT 
+SELECT
 	(created_at at TIME ZONE 'UTC')::date as date,
 	user_id
 FROM