fix: drop stubs that claim what a phone cannot do (0.1.1)

get_health_metrics, get_ssids, get_radio_info and get_wireless_clients
only raised NotImplementedError. They are left over from when the
driver sat on AccessPointDriver, and a stub makes a capability check
(callable(getattr(driver, name))) answer yes. The application polls
SNMP itself (napalm-device-types docs/STRUCTURE.md); a phone has no
profile to declare.

Also stops tracking the .pyc and egg-info files .gitignore already
lists.

Closes #2

napalm_yealink/yealink.py

@@ -22,7 +22,6 @@ from requests.exceptions import RequestException
 
 from napalm.base.exceptions import ConnectionClosedException, ConnectionException
 from napalm_device_types import FingerprintRule, PhoneDriver
-from napalm_device_types.models import HealthMetricsDict
 
 
 class YealinkDriver(PhoneDriver):
@@ -210,18 +209,3 @@ class YealinkDriver(PhoneDriver):
 
     def rollback(self) -> None:
         raise NotImplementedError
-
-    # AccessPointDriver stubs
-
-    def get_wireless_clients(self) -> list:
-        raise NotImplementedError
-
-    def get_ssids(self) -> dict:
-        raise NotImplementedError
-
-    def get_radio_info(self) -> dict:
-        raise NotImplementedError
-
-    @classmethod
-    async def get_health_metrics(cls, snmp_get, snmp_walk) -> HealthMetricsDict:
-        raise NotImplementedError