docs(search): Remove the example depending on the matrix-sdk crate

Examples are great, but the circular dependency this introduces is not
worth the trouble.

Author: poljar

crates/matrix-sdk-search/README.md

@@ -7,51 +7,6 @@ This crate implements a searchable index for messages in a Matrix client.
 The recommended way to use this crate is to include `matrix-sdk` as a dependency 
 in your `Cargo.toml` file with the `experimental-search` feature flag turned on.
 
-Instantiation is done by the client builder using `matrix_sdk::client::builder::ClientBuilder::search_index_store()`.
-
-```rust
-use std::path::Path;
-use matrix_sdk::{
-    Client, ClientBuildError, SqliteCryptoStore, SqliteEventCacheStore, SqliteStateStore,  
-    config::StoreConfig,
-    search_index::SearchIndexStoreKind,
-};
-
-async fn make_client(
-    name: &str, 
-    session_path: &Path, 
-    server_name: &str
-) -> Result<Client, ClientBuildError> {
-    Client::builder()
-        .store_config(
-            StoreConfig::new(name.to_owned())
-                .crypto_store(SqliteCryptoStore::open(session_path.join("crypto"), None).await?)
-                .state_store(SqliteStateStore::open(session_path.join("state"), None).await?)
-                .event_cache_store(
-                    SqliteEventCacheStore::open(session_path.join("cache"), None).await?,
-                ),
-        )
-        .server_name_or_homeserver_url(server_name)
-        .search_index_store(SearchIndexStoreKind::UnencryptedDirectory(session_path.join("index")))
-        .build()
-        .await
-}
-
-```
-
-And searching is done via `matrix_sdk::room::Room::search()`.
-
-```rust
-use ruma::OwnedEventId;
-use matrix_sdk::room::Room;
-use matrix_sdk_search::error::IndexError;
-
-async fn search_in_room(room: Room, query: &str) -> Result<Vec<OwnedEventId>, IndexError> {
-    // Returns at most 100 results with no pagination offset.
-    room.search(query, 100, None).await
-}
-```
-
 ## Stand-alone usage
 
 Constructing a `matrix_sdk_search::index::RoomIndex` is done with the `matrix_sdk_search::index::builder::RoomIndexBuilder`.