Remove obsolete explain_js_error management command.

(imported from commit 92f23e3bb7e6dbbad5162446b5f19e74728cf608)

zerver/management/commands/explain_js_error.py

@@ -1,49 +0,0 @@
-from __future__ import absolute_import
-
-import os
-import sys
-import select
-
-from django.core.management.base import BaseCommand, CommandError
-
-from zerver.lib.unminify import SourceMap
-
-# Wait for the user to paste text, then time out quickly and
-# return it.  Disable echo so that we can re-echo the same
-# lines with our annotations.
-def get_full_paste():
-    try:
-        os.system('stty -echo raw isig')
-
-        data = ''
-        while True:
-            fd = sys.stdin.fileno()
-            can_read = select.select([fd], [], [], 0.1)[0]
-            if can_read:
-                data += os.read(fd, 1)
-            else:
-                if data:
-                    return data
-    finally:
-        os.system('stty cooked echo')
-
-class Command(BaseCommand):
-    args = '<source map directory>'
-    help = '''Add source locations to a stack backtrace generated by minified code.
-
-The currently checked out code should match the version that generated the error.'''
-
-    def handle(self, *args, **options):
-        if len(args) != 1:
-            raise CommandError('No source map directory specified')
-
-        source_map = SourceMap(args[0])
-
-        if os.isatty(sys.stdin.fileno()):
-            sys.stdout.write('Paste stacktrace:\n\n')
-            sys.stdout.flush()
-            stacktrace = get_full_paste()
-        else:
-            stacktrace = sys.stdin.read()
-
-        sys.stdout.write(source_map.annotate_stacktrace(stacktrace))