Restore workspace-wide clippy

Fixes accumulated errors in the Substrate code. Modifies the runtime build to
work with a modern clippy. Removes e2e tests from the workspace.

networks/monero/wallet/src/tests/extra.rs

@@ -9,6 +9,7 @@ use crate::{
 // https://github.com/monero-project/monero/blob/ac02af92867590ca80b2779a7bbeafa99ff94dcb/
 //   tests/unit_tests/test_tx_utils.cpp
 // which is licensed
+#[allow(clippy::empty_line_after_outer_attr)] // rustfmt is for the comment, not for the const
 #[rustfmt::skip]
 /*
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