Add api functions to delete account data.

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/RoomAPI.kt

@@ -427,6 +427,19 @@ internal interface RoomAPI {
             @Body content: JsonDict
     )
 
+    /**
+     * Remove an account_data event from the room.
+     * @param userId the user id
+     * @param roomId the room id
+     * @param type the type
+     */
+    @DELETE(NetworkConstants.URI_API_PREFIX_PATH_MEDIA_PROXY_UNSTABLE + "org.matrix.msc3391/user/{userId}/rooms/{roomId}/account_data/{type}")
+    suspend fun deleteRoomAccountData(
+            @Path("userId") userId: String,
+            @Path("roomId") roomId: String,
+            @Path("type") type: String
+    )
+
     /**
      * Upgrades the given room to a particular room version.
      * Errors:

matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/user/accountdata/AccountDataAPI.kt

@@ -18,6 +18,7 @@ package org.matrix.android.sdk.internal.session.user.accountdata
 
 import org.matrix.android.sdk.internal.network.NetworkConstants
 import retrofit2.http.Body
+import retrofit2.http.DELETE
 import retrofit2.http.PUT
 import retrofit2.http.Path
 
@@ -36,4 +37,16 @@ internal interface AccountDataAPI {
             @Path("type") type: String,
             @Body params: Any
     )
+
+    /**
+     * Remove an account_data for the client.
+     *
+     * @param userId the user id
+     * @param type the type
+     */
+    @DELETE(NetworkConstants.URI_API_PREFIX_PATH_UNSTABLE + "org.matrix.msc3391/user/{userId}/account_data/{type}")
+    suspend fun deleteAccountData(
+            @Path("userId") userId: String,
+            @Path("type") type: String
+    )
 }