tidy fixes

Author: jschillem

library/core/src/lib.rs

@@ -411,5 +411,3 @@ include!("keyword_docs.rs");
 // the rustdoc documentation for primitive types. Using `include!`
 // because rustdoc only looks for these modules at the crate level.
 include!("primitive_docs.rs");
-
-

library/std/src/lib.rs

@@ -792,7 +792,6 @@ include!("../../core/src/keyword_docs.rs");
 // because rustdoc only looks for these modules at the crate level.
 include!("../../core/src/primitive_docs.rs");
 
-
 // This is required to avoid an unstable error when `restricted-std` is not
 // enabled. The use of #![feature(restricted_std)] in rustc-std-workspace-std
 // is unconditional, so the unstable feature needs to be defined somewhere.