management: Delete send_stats command.

This command is part of a statsd infrastructure that we stopped
supporting years ago. Its only purpose for some time has been to
provide sample code for how the restart script might trigger a
notification to a graphing system, which doesn't justify maintaining
it.

Fixes part of #18898.

scripts/restart-server

@@ -46,11 +46,6 @@ if pwd.getpwuid(os.getuid()).pw_name != "zulip":
     logging.error("Must be run as user 'zulip'.")
     sys.exit(1)
 
-# Send a statsd event on restarting the server
-subprocess.check_call(
-    ["./manage.py", "send_stats", "incr", "events.server_restart", str(int(time.time()))]
-)
-
 if args.fill_cache:
     logging.info("Filling memcached caches")
     subprocess.check_call(["./manage.py", "fill_memcached_caches"])

zerver/management/commands/send_stats.py

@@ -1,30 +0,0 @@
-from argparse import ArgumentParser
-from typing import Any
-
-from django.conf import settings
-from django.core.management.base import BaseCommand
-
-
-class Command(BaseCommand):
-    help = """Send some stats to statsd."""
-
-    def add_arguments(self, parser: ArgumentParser) -> None:
-        parser.add_argument(
-            "operation",
-            metavar="<operation>",
-            choices=["incr", "decr", "timing", "timer", "gauge"],
-            help="incr|decr|timing|timer|gauge",
-        )
-        parser.add_argument("name", metavar="<name>")
-        parser.add_argument("val", metavar="<val>")
-
-    def handle(self, *args: Any, **options: str) -> None:
-        operation = options["operation"]
-        name = options["name"]
-        val = options["val"]
-
-        if settings.STATSD_HOST != "":
-            from statsd import statsd
-
-            func = getattr(statsd, operation)
-            func(name, val)