revert: disable auto upgrades (#1194)

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## What is the current behavior?

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Resolves #<Issue number>

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src/kakarot/account.cairo

@@ -126,7 +126,8 @@ namespace Account {
 
         // Upgrade the target starknet contract's class if it's not the latest one.
         // The contract must be deployed on starknet already.
-        Internals.check_and_upgrade_account_class(address);
+        // TODO! Uncomment when the upgrade is needed
+        // Internals.check_and_upgrade_account_class(address);
 
         let (bytecode_len, bytecode) = IAccount.bytecode(contract_address=starknet_address);
         let (nonce) = IAccount.get_nonce(contract_address=starknet_address);

tests/end_to_end/test_account.py

@@ -160,6 +160,7 @@ async def test_should_update_cairo1_helpers_class(
                 == target_class
             )
 
+    @pytest.mark.xfail(reason="Disabled")
     class TestAutoUpgradeContracts:
         async def test_should_upgrade_outdated_contract_transaction_target(
             self,