Revert "Merge branch 'hotfix/keyReuseFix' into 'release'"

Makefile

cmix/encryptDecrypt.go

cmix/encryptDecrypt_test.go

cmix/key.go

csprng/source.go

cyclic/group.go

cyclic/group_test.go

diffieHellman/dhkx.go

diffieHellman/dhkx_test.go

e2e/derive.go

e2e/derrive_test.go

e2e/dummykeygen_test.go

e2e/encrypt.go

e2e/encrypt_test.go

e2e/encryptionChecker.go

e2e/encryptionChecker_test.go

e2e/keys.go

e2e/keys_test.go

e2e/relationshipFingerprint.go

e2e/relationshipFingerprint_test.go