Remove unnecessary lines from tests

Author: riccardopersiani

test/wallet/top_up_gas_test.go

@@ -284,7 +284,6 @@ var _ = Describe("topUpGas", func() {
 
 		BeforeEach(func() {
 			caller = Controller
-			BankAccount.MustTransfer(Backend, Controller.Address(), GweiToWei(20))
 			ownerBalance, err = Backend.BalanceAt(context.Background(), Owner.Address(), nil)
 			Expect(err).ToNot(HaveOccurred())
 		})
@@ -301,10 +300,6 @@ var _ = Describe("topUpGas", func() {
 				Expect(err).ToNot(HaveOccurred())
 			})
 
-			It("should fail", func() {
-				Expect(isSuccessful(tx)).To(BeFalse())
-			})
-
 			It("should NOT top up the gas", func() {
 				b, e := Backend.BalanceAt(context.Background(), WalletProxyAddress, nil)
 				Expect(e).ToNot(HaveOccurred())