docs: remove repetitive words

Signed-off-by: RiceChuan <[email protected]>

tests/e2e/v5/commands.go

@@ -604,7 +604,7 @@ func (tr Commands) GetTrustedHeight(
 
 	var trustedHeight gjson.Result
 	// iterate on the relayer's response
-	// and parse the the command "result"
+	// and parse the command "result"
 	for scanner.Scan() {
 		out := scanner.Text()
 		if len(gjson.Get(out, "result").Array()) > 0 {