refactor: remove .Type() and .Route() from msgs (#14751)

docs/docs/building-modules/02-messages-and-queries.md

@@ -63,8 +63,6 @@ https://github.com/cosmos/cosmos-sdk/blob/v0.47.0-rc1/types/tx_msg.go#L14-L26
 
 It extends `proto.Message` and contains the following methods:
 
-* `Route() string`: Name of the route for this message. Typically all `message`s in a module have the same route, which is most often the module's name.
-* `Type() string`: Type of the message, used primarily in [events](../core/08-events.md). This should return a message-specific `string`, typically the denomination of the message itself.
 * [`ValidateBasic() error`](../basics/01-tx-lifecycle.md#ValidateBasic).
 * `GetSignBytes() []byte`: Return the canonical byte representation of the message. Used to generate a signature.
 * `GetSigners() []AccAddress`: Return the list of signers. The Cosmos SDK will make sure that each `message` contained in a transaction is signed by all the signers listed in the list returned by this method.

docs/docs/core/08-events.md

@@ -57,7 +57,6 @@ The following examples show how to query Events using the Cosmos SDK.
 | ------------------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `tx.height=23`                                   | Query all transactions at height 23                                                                                                                      |
 | `message.action='/cosmos.bank.v1beta1.Msg/Send'` | Query all transactions containing a x/bank `Send` [Service `Msg`](../building-modules/03-msg-services.md). Note the `'`s around the value.                  |
-| `message.action='send'`                          | Query all transactions containing a x/bank `Send` [legacy `Msg`](../building-modules/03-msg-services.md#legacy-amino-msgs). Note the `'`s around the value. |
 | `message.module='bank'`                          | Query all transactions containing messages from the x/bank module. Note the `'`s around the value.                                                       |
 | `create_validator.validator='cosmosval1...'`     | x/staking-specific Event, see [x/staking SPEC](../modules/staking/README.md).                                                         |