types: remove pubkey options (#5016)

## Description

This PR removes options in picking different pubkey types. We don't support anything other than ed25519 so this was redundant.
We only ever supported ed25519 keys so not sure why we exposed different options.

Not sure if this needs a changelog entry ?


Closes: #XXX

types/params_test.go

@@ -13,8 +13,7 @@ import (
 )
 
 var (
-	valEd25519   = []string{ABCIPubKeyTypeEd25519}
+	valEd25519 = []string{ABCIPubKeyTypeEd25519}
-	valSecp256k1 = []string{ABCIPubKeyTypeSecp256k1}
 )
 
 func TestConsensusParamsValidation(t *testing.T) {
@@ -129,10 +128,10 @@ func TestConsensusParamsUpdate(t *testing.T) {
 					MaxNum:          50,
 				},
 				Validator: &tmproto.ValidatorParams{
-					PubKeyTypes: valSecp256k1,
+					PubKeyTypes: valEd25519,
 				},
 			},
-			makeParams(100, 200, 10, 300, 50, valSecp256k1),
+			makeParams(100, 200, 10, 300, 50, valEd25519),
 		},
 	}
 	for _, tc := range testCases {

types/protobuf.go

@@ -9,8 +9,6 @@ import (
 	"github.com/tendermint/tendermint/crypto"
 	"github.com/tendermint/tendermint/crypto/ed25519"
 	cryptoenc "github.com/tendermint/tendermint/crypto/encoding"
-	"github.com/tendermint/tendermint/crypto/secp256k1"
-	"github.com/tendermint/tendermint/crypto/sr25519"
 	tmproto "github.com/tendermint/tendermint/proto/types"
 )
 
@@ -18,22 +16,21 @@ import (
 // Use strings to distinguish types in ABCI messages
 
 const (
-	ABCIEvidenceTypeDuplicateVote = "duplicate/vote"
+	ABCIEvidenceTypeDuplicateVote    = "duplicate/vote"
-	ABCIEvidenceTypeMock          = "mock/evidence"
+	ABCIEvidenceTypePhantom          = "phantom"
+	ABCIEvidenceTypeLunatic          = "lunatic"
+	ABCIEvidenceTypePotentialAmnesia = "potential_amnesia"
+	ABCIEvidenceTypeMock             = "mock/evidence"
 )
 
 const (
-	ABCIPubKeyTypeEd25519   = "ed25519"
+	ABCIPubKeyTypeEd25519 = "ed25519"
-	ABCIPubKeyTypeSr25519   = "sr25519"
-	ABCIPubKeyTypeSecp256k1 = "secp256k1"
 )
 
 // TODO: Make non-global by allowing for registration of more pubkey types
 
 var ABCIPubKeyTypesToNames = map[string]string{
-	ABCIPubKeyTypeEd25519:   ed25519.PubKeyName,
+	ABCIPubKeyTypeEd25519: ed25519.PubKeyName,
-	ABCIPubKeyTypeSr25519:   sr25519.PubKeyName,
-	ABCIPubKeyTypeSecp256k1: secp256k1.PubKeyName,
 }
 
 //-------------------------------------------------------
@@ -137,11 +134,11 @@ func (tm2pb) Evidence(ev Evidence, valSet *ValidatorSet, evTime time.Time) abci.
 	case *DuplicateVoteEvidence:
 		evType = ABCIEvidenceTypeDuplicateVote
 	case *PhantomValidatorEvidence:
-		evType = "phantom"
+		evType = ABCIEvidenceTypePhantom
 	case *LunaticValidatorEvidence:
-		evType = "lunatic"
+		evType = ABCIEvidenceTypeLunatic
 	case *PotentialAmnesiaEvidence:
-		evType = "potential_amnesia"
+		evType = ABCIEvidenceTypePotentialAmnesia
 	case MockEvidence:
 		// XXX: not great to have test types in production paths ...
 		evType = ABCIEvidenceTypeMock