remove click dependency from integrationdocs

This doesn't exactly mirror behavior of click.echo, but it's close
enough for our purposes since this was intended to replace `print`
initially.

Author: mattrobenolt

src/sentry/utils/integrationdocs.py

@@ -7,7 +7,6 @@
 import json
 import logging
 
-from click import echo
 import sentry
 
 BASE_URL = 'https://docs.sentry.io/hosted/_platforms/{}'
@@ -46,6 +45,12 @@ def iteritems(d, **kw):
 logger = logging.getLogger('sentry')
 
 
+def echo(what):
+    sys.stdout.write(what)
+    sys.stdout.write('\n')
+    sys.stdout.flush()
+
+
 def dump_doc(path, data):
     fn = os.path.join(DOC_FOLDER, path + '.json')
     directory = os.path.dirname(fn)