Revert "Test for both valid and invalid toolchain"

This reverts commit ebd50d2.

Author: syphar

src/docbuilder/rustwide_builder.rs

@@ -2124,68 +2124,4 @@ mod tests {
 
         Ok(())
     }
-
-    #[test]
-    fn test_add_essential_files_with_toolchain() {
-        wrapper(|env: &TestEnvironment| {
-            let mut builder = RustwideBuilder::init(env).unwrap();
-
-            builder.update_toolchain()?;
-
-            // Should not fail on missing toolchain
-            match builder.add_essential_files() {
-                Ok(_) => println!("add_essential_files succeeded with toolchain"),
-                Err(err) => {
-                    let error_message = err.to_string();
-                    let is_toolchain_error = error_message.contains("toolchain")
-                        && (error_message.contains("not found")
-                            || error_message.contains("not installed")
-                            || error_message.contains("missing")
-                            || error_message.contains("invalid toolchain"));
-
-                    assert!(
-                        !is_toolchain_error,
-                        "Should not fail due to missing toolchain, but got: {error_message}"
-                    );
-                    println!("add_essential_files failed for expected reason: {error_message}");
-                }
-            }
-
-            Ok(())
-        })
-    }
-
-    #[test]
-    fn test_add_essential_files_without_toolchain() {
-        wrapper(|env: &TestEnvironment| {
-            let mut builder = RustwideBuilder::init(env).unwrap();
-
-            // First: Set an invalid toolchain
-            env.runtime().block_on(async {
-                let mut conn = env.async_db().await.async_conn().await;
-                crate::utils::set_config(
-                    &mut conn,
-                    crate::utils::ConfigName::Toolchain,
-                    "invalid-toolchain-name!@#",
-                )
-                .await
-            })?;
-
-            // Should fail on missing toolchain
-            match builder.add_essential_files() {
-                Ok(_) => panic!("add_essential_files should fail when toolchain is missing"),
-                Err(e) => {
-                    let error_message = e.to_string();
-                    println!("add_essential_files correctly failed with: {error_message}");
-
-                    assert!(
-                        !error_message.contains("success"),
-                        "Should not succeed when toolchain is missing"
-                    );
-                }
-            }
-
-            Ok(())
-        })
-    }
 }