all: remove duplicate word in comments (#1570)

cmd/utils/flags.go

@@ -494,7 +494,7 @@ var (
 	}
 	HTTPPathPrefixFlag = &cli.StringFlag{
 		Name:     "http-rpcprefix",
-		Usage:    "HTTP path path prefix on which JSON-RPC is served. Use '/' to serve on all paths.",
+		Usage:    "HTTP path prefix on which JSON-RPC is served. Use '/' to serve on all paths.",
 		Value:    "",
 		Category: flags.APICategory,
 	}

core/bloombits/matcher.go

@@ -392,7 +392,7 @@ func (m *Matcher) distributor(dist chan *request, session *MatcherSession) {
 		shutdown = session.quit // Shutdown request channel, will gracefully wait for pending requests
 	)
 
-	// assign is a helper method fo try to assign a pending bit an an actively
+	// assign is a helper method fo try to assign a pending bit an actively
 	// listening servicer, or schedule it up for later when one arrives.
 	assign := func(bit uint) {
 		select {

miner/unconfirmed.go

@@ -40,7 +40,7 @@ type unconfirmedBlock struct {
 }
 
 // unconfirmedBlocks implements a data structure to maintain locally mined blocks
-// have have not yet reached enough maturity to guarantee chain inclusion. It is
+// have not yet reached enough maturity to guarantee chain inclusion. It is
 // used by the miner to provide logs to the user when a previously mined block
 // has a high enough guarantee to not be reorged out of the canonical chain.
 type unconfirmedBlocks struct {

p2p/simulations/events.go

@@ -30,7 +30,7 @@ const (
 	EventTypeNode EventType = "node"
 
 	// EventTypeConn is the type of event emitted when a connection is
-	// is either established or dropped between two nodes
+	// either established or dropped between two nodes
 	EventTypeConn EventType = "conn"
 
 	// EventTypeMsg is the type of event emitted when a p2p message it