refactor/internal (#1216)

* refactor: update import paths in gateway handlers

* refactor: remove obsolete devtools Makefile and README

* build: optimize build process for improved efficiency

* refactor: remove obsolete pkl files related to Matrix and Sonr network configurations

* refactor: move embed code to x/dwn/types

crypto/internal/err.go

@@ -1,22 +0,0 @@
-//
-// Copyright Coinbase, Inc. All Rights Reserved.
-//
-// SPDX-License-Identifier: Apache-2.0
-//
-
-package internal
-
-import "fmt"
-
-var (
-	ErrNotOnCurve           = fmt.Errorf("point not on the curve")
-	ErrPointsDistinctCurves = fmt.Errorf("points must be from the same curve")
-	ErrZmMembership         = fmt.Errorf("x ∉ Z_m")
-	ErrResidueOne           = fmt.Errorf("value must be 1 (mod N)")
-	ErrNCannotBeZero        = fmt.Errorf("N cannot be 0")
-	ErrNilArguments         = fmt.Errorf("arguments cannot be nil")
-	ErrZeroValue            = fmt.Errorf("arguments cannot be 0")
-	ErrInvalidRound         = fmt.Errorf("invalid round method called")
-	ErrIncorrectCount       = fmt.Errorf("incorrect number of inputs")
-	ErrInvalidJson          = fmt.Errorf("json format does not contain the necessary data")
-)