Reland "refactor(core): cleanup feature flags for js source inclusion" (#19519)

Relands #19463. This time the `ExtensionFileSourceCode` enum is
preserved, so this effectively just splits feature
`include_js_for_snapshotting` into `exclude_js_sources` and
`runtime_js_sources`, adds a `force_include_js_sources` option on
`extension!()`, and unifies `ext::Init_ops_and_esm()` and
`ext::init_ops()` into `ext::init()`.

1 files changed, 0 insertions, 1 deletions

diff --git a/ext/fs/lib.rs b/ext/fs/lib.rs
index 7ba6cd7ca..d27712927 100644
--- a/ext/fs/lib.rs
+++ b/ext/fs/lib.rs
@@ -19,7 +19,6 @@ use crate::ops::*;
 use deno_core::error::AnyError;
 use deno_core::OpState;
 use std::cell::RefCell;
-use std::convert::From;
 use std::path::Path;
 use std::rc::Rc;