chore: remove repetitive words (#1275)

## Description

remove repetitive words
---

#### PR checklist

- [x] Tests written/updated
- [x] Changelog entry added in `.changelog` (we use
[unclog](https://github.com/informalsystems/unclog) to manage our
changelog)
- [x] Updated relevant documentation (`docs/` or `spec/`) and code
comments

Signed-off-by: sellskin <mydesk@yeah.net>

crypto/ed25519/ed25519.go

@@ -20,7 +20,7 @@ var _ crypto.PrivKey = PrivKey{}
 const (
 	PrivKeyName = "tendermint/PrivKeyEd25519"
 	PubKeyName  = "tendermint/PubKeyEd25519"
-	// PubKeySize is is the size, in bytes, of public keys as used in this package.
+	// PubKeySize is the size, in bytes, of public keys as used in this package.
 	PubKeySize = 32
 	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
 	PrivateKeySize = 64

docs/celestia-architecture/adr-007-minimal-changes-to-tendermint.md

@@ -123,7 +123,7 @@ describe how to hash the block data here:
 - Add PreprocessTxs method to ABCI (https://github.com/celestiaorg/celestia-core/pull/110)
 - Add method to ABCI interface
 - Create sync and async versions
-- Add sync version the the CreateProposalBlock method of BlockExecutor
+- Add sync version the CreateProposalBlock method of BlockExecutor
 
 #### Fill the DAH while making the block
 

p2p/trust/store.go

@@ -34,7 +34,7 @@ type MetricStore struct {
 
 // NewTrustMetricStore returns a store that saves data to the DB
 // and uses the config when creating new trust metrics.
-// Use Start to to initialize the trust metric store
+// Use Start to initialize the trust metric store
 func NewTrustMetricStore(db dbm.DB, tmc MetricConfig) *MetricStore {
 	tms := &MetricStore{
 		peerMetrics: make(map[string]*Metric),

test/maverick/consensus/state.go

@@ -686,7 +686,7 @@ func (cs *State) OnStop() {
 	// WAL is stopped in receiveRoutine.
 }
 
-// Wait waits for the the main routine to return.
+// Wait waits for the main routine to return.
 // NOTE: be sure to Stop() the event switch and drain
 // any event channels or this may deadlock
 func (cs *State) Wait() {