firefox-esr: drop rust-cssparser.patch

srcpkgs/firefox-esr/patches/rust-cssparser.patch

@@ -1,90 +0,0 @@
-backport of:
-
-From 3c98d22c5de3b696bf1fde2b6c90069812312aa6 Mon Sep 17 00:00:00 2001
-From: Simon Sapin <simon.sapin@exyr.org>
-Date: Tue, 23 Apr 2019 13:47:25 +0200
-Subject: [PATCH] Fix a future-compat warning
-
-```
-warning[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
-   --> src/parser.rs:591:17
-    |
-566 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
-    |                                                   - let's call the lifetime of this reference `'1`
-...
-579 |             Some(ref cached_token)
-    |                  ---------------- borrow of `self.input.cached_token` occurs here
-...
-591 |                 self.input.cached_token = Some(CachedToken {
-    |                 ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here
-...
-603 |         Ok(token)
-    |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
-    |
-    = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
-    = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
-```
----
- src/parser.rs | 50 +++++++++++++++++++++++++++-----------------------
- 1 file changed, 27 insertions(+), 23 deletions(-)
-
-diff --git a/src/parser.rs b/src/parser.rs
-index 51f441e4..7cef117c 100644
---- third_party/rust/cssparser/src/parser.rs
-+++ third_party/rust/cssparser/src/parser.rs
-@@ -555,28 +555,34 @@
-         }
- 
-         let token_start_position = self.input.tokenizer.position();
--        let token;
--        match self.input.cached_token {
--            Some(ref cached_token)
--            if cached_token.start_position == token_start_position => {
--                self.input.tokenizer.reset(&cached_token.end_state);
--                match cached_token.token {
--                    Token::Function(ref name) => self.input.tokenizer.see_function(name),
--                    _ => {}
--                }
--                token = &cached_token.token
-+        let using_cached_token = self
-+            .input
-+            .cached_token
-+            .as_ref()
-+            .map_or(false, |cached_token| {
-+                cached_token.start_position == token_start_position
-+            });
-+        let token = if using_cached_token {
-+            let cached_token = self.input.cached_token.as_ref().unwrap();
-+            self.input.tokenizer.reset(&cached_token.end_state);
-+            match cached_token.token {
-+                Token::Function(ref name) => self.input.tokenizer.see_function(name),
-+                _ => {}
-             }
--            _ => {
--                let new_token = self.input.tokenizer.next()
--                    .map_err(|()| self.new_basic_error(BasicParseErrorKind::EndOfInput))?;
--                self.input.cached_token = Some(CachedToken {
--                    token: new_token,
--                    start_position: token_start_position,
--                    end_state: self.input.tokenizer.state(),
--                });
--                token = self.input.cached_token_ref()
--            }
--        }
-+            &cached_token.token
-+        } else {
-+            let new_token = self
-+                .input
-+                .tokenizer
-+                .next()
-+                .map_err(|()| self.new_basic_error(BasicParseErrorKind::EndOfInput))?;
-+            self.input.cached_token = Some(CachedToken {
-+                token: new_token,
-+                start_position: token_start_position,
-+                end_state: self.input.tokenizer.state(),
-+            });
-+            self.input.cached_token_ref()
-+        };
- 
-         if let Some(block_type) = BlockType::opening(token) {
-             self.at_start_of = Some(block_type);