fix(forks): Remove is_deployed=False from Prague

Author: marioevz

src/ethereum_test_forks/forks/forks.py

@@ -1044,14 +1044,6 @@ def valid_opcodes(
 class Prague(Cancun):
     """Prague fork."""
 
-    @classmethod
-    def is_deployed(cls) -> bool:
-        """
-        Flag that the fork has not been deployed to mainnet; it is under active
-        development.
-        """
-        return False
-
     @classmethod
     def solc_min_version(cls) -> Version:
         """Return minimum version of solc that supports this fork."""