Don't add reverts to corpus #2053

Job	Run time
Build Echidna on ubuntu-20.04	5m 25s
Build Echidna on macos-13	9m 27s
Build Echidna on windows-latest	13m 3s
Test with solc 0.4.25 on ubuntu-latest	4m 51s
Test with solc 0.5.7 on ubuntu-latest	3m 35s
Test with solc 0.6.12 on ubuntu-latest	3m 53s
Test with solc 0.7.5 on ubuntu-latest	3m 47s
Test with solc 0.4.25 on windows-latest	5m 4s
Test with solc 0.5.7 on windows-latest	4m 45s
Test with solc 0.6.12 on windows-latest	4m 46s
Test with solc 0.7.5 on windows-latest	4m 55s
	1h 3m 31s

Provide feedback