fix: remove redundant _validateSignature

src/common/BaseLightAccount.sol

@@ -95,13 +95,6 @@ abstract contract BaseLightAccount is BaseAccount, TokenCallbackHandler, UUPSUpg
     /// @dev Must override to support ERC-1271 signature validation.
     function isValidSignature(bytes32 hash, bytes memory signature) public view virtual override returns (bytes4);
 
-    /// @dev Must override to support user op validation.
-    function _validateSignature(PackedUserOperation calldata userOp, bytes32 userOpHash)
-        internal
-        virtual
-        override
-        returns (uint256);
-
     /// @dev Must override to allow calls to protected functions.
     function _isFromOwner() internal view virtual returns (bool);
 

test/LightAccount.t.sol

@@ -288,7 +288,7 @@ contract LightAccountTest is Test {
                     bytes32(uint256(uint160(0x0000000071727De22E5E9d8BAf0edAc6f37da032)))
                 )
             ),
-            0x366526c31a9f3ae63f66515d13f8e6888fe6edac9bc95296cb53e68006ad9888
+            0x615ee1c0ec29b577ecc3af52e02e448cdb583a906dd0debd02c5ca9048ef98a6
         );
     }
 

test/MultiOwnerLightAccount.t.sol

@@ -330,7 +330,7 @@ contract MultiOwnerLightAccountTest is Test {
                     bytes32(uint256(uint160(0x0000000071727De22E5E9d8BAf0edAc6f37da032)))
                 )
             ),
-            0x00e57e998a9d001dbf34b3abab4e0cdb4c57020ee08eaa3b639f167fbb87aa4c
+            0xcb9592a573d51d2b1e5d7fb8e2f8cbe547a5f1a680e5566c1d619fcb767f1fb7
         );
     }