chore: enable errcheck linter (#16406)

fuzz/tests/crypto_hd_deriveprivatekeyforpath_test.go

@@ -30,6 +30,6 @@ func FuzzCryptoHDDerivePrivateKeyForPath(f *testing.F) {
 		}
 		seed := mnemonicToSeed(string(mnemonic))
 		master, ch := hd.ComputeMastersFromSeed(seed)
-		hd.DerivePrivateKeyForPath(master, ch, string(path))
+		_, _ = hd.DerivePrivateKeyForPath(master, ch, string(path))
 	})
 }

fuzz/tests/crypto_hd_newparamsfrompath_test.go

@@ -10,6 +10,6 @@ import (
 
 func FuzzCryptoHDNewParamsFromPath(f *testing.F) {
 	f.Fuzz(func(t *testing.T, data []byte) {
-		hd.NewParamsFromPath(string(data))
+		_, _ = hd.NewParamsFromPath(string(data))
 	})
 }

fuzz/tests/types_parsecoin_test.go

@@ -10,6 +10,6 @@ import (
 
 func FuzzTypesParseCoin(f *testing.F) {
 	f.Fuzz(func(t *testing.T, data []byte) {
-		types.ParseCoinNormalized(string(data))
+		_, _ = types.ParseCoinNormalized(string(data))
 	})
 }

fuzz/tests/types_parsedeccoin_test.go

@@ -10,6 +10,6 @@ import (
 
 func FuzzTypesParseDecCoin(f *testing.F) {
 	f.Fuzz(func(t *testing.T, data []byte) {
-		types.ParseDecCoin(string(data))
+		_, _ = types.ParseDecCoin(string(data))
 	})
 }

fuzz/tests/types_verifyaddressformat_test.go

@@ -10,6 +10,6 @@ import (
 
 func FuzzTypesVerifyAddressFormat(f *testing.F) {
 	f.Fuzz(func(t *testing.T, data []byte) {
-		types.VerifyAddressFormat(data)
+		_ = types.VerifyAddressFormat(data)
 	})
 }

fuzz/tests/unknownproto_test.go

@@ -13,7 +13,8 @@ func FuzzUnknownProto(f *testing.F) {
 	f.Fuzz(func(t *testing.T, b []byte) {
 		msg := new(testdata.TestVersion2)
 		resolver := new(unknownproto.DefaultAnyResolver)
-		unknownproto.RejectUnknownFields(b, msg, true, resolver)
-		unknownproto.RejectUnknownFields(b, msg, false, resolver)
+		_, _ = unknownproto.RejectUnknownFields(b, msg, true, resolver)
+
+		_, _ = unknownproto.RejectUnknownFields(b, msg, false, resolver)
 	})
 }