Skip a slow RPC test that overloads CI

Alone, the test passes in CI, but not when combined with the rest

Author: carver

tests/trinity/json-fixtures-over-rpc/test_rpc_fixtures.py

@@ -67,6 +67,7 @@
     'static_Call50000_d0g0v0_Byzantium',
     'static_Call50000_ecrec_d0g0v0_Byzantium',
     'static_Call50000_identity2_d0g0v0_Byzantium',
+    'static_Call50000_identity2_d1g0v0_Byzantium',
     'static_Call50000_identity_d1g0v0_Byzantium',
     'static_Call50000_identity_d0g0v0_Byzantium',
     'static_Call50000bytesContract50_1_d1g0v0_Byzantium',