device manager: index devices by xpub

plugins/keepkey/__init__.py

@@ -3,6 +3,5 @@ from electrum.i18n import _
 fullname = 'KeepKey'
 description = _('Provides support for KeepKey hardware wallet')
 requires = [('keepkeylib','github.com/keepkey/python-keepkey')]
-#requires_wallet_type = ['keepkey']
 registers_keystore = ('hardware', 'keepkey', _("KeepKey wallet"))
 available_for = ['qt', 'cmdline']