test: Remove unnecessary inner_set_protection() call (#4539)

1:1 chats are automatically created as protected if the contact is
verified, there is no need to explicitly do this.

Plus, by removing this call, the test also tests that automatically
creating 1:1 chats as protected works.

src/tests/verified_chats.rs

@@ -449,12 +449,7 @@ async fn test_break_protection_then_verify_again() -> Result<()> {
     mark_as_verified(&alice, &bob).await;
     mark_as_verified(&bob, &alice).await;
 
-    alice
-        .create_chat(&bob)
-        .await
-        .id
-        .inner_set_protection(&alice, ProtectionStatus::Protected)
-        .await?;
+    alice.create_chat(&bob).await;
     assert_verified(&alice, &bob, ProtectionStatus::Protected).await;
 
     tcm.section("Bob reinstalls DC");