staticcheck.conf: remove unnecessary warning

Signed-off-by: David Crawshaw <[email protected]>

staticcheck.conf

@@ -1,6 +1,6 @@
 # Full list: https://staticcheck.io/docs/checks
 checks = [
-	"SA*", "-SA1019", "-SA2001", # SA* are mostly legit code errors
+	"SA*", "-SA1019", "-SA2001", "-SA9003", # SA* are mostly legit code errors
 
 	# S1?? are "code simplifications" which we consider unnecessary