fix: remove outdated symbols

Author: sophec

absscpi/__init__.py

@@ -20,7 +20,6 @@
     "AbsEthernetConfig",
     "AbsModelStatus",
     "AbsModelInfo",
-    "AbsModelOutputPair",
     "AbsEthernetDiscoveryResult",
     "AbsSerialDiscoveryResult",
     "ScpiClientError",
@@ -35,7 +34,6 @@
     AbsEthernetConfig,
     AbsModelStatus,
     AbsModelInfo,
-    AbsModelOutputPair,
     AbsEthernetDiscoveryResult,
     AbsSerialDiscoveryResult,
     ScpiClientError,