electron: clean up unused patches

pkgs/development/tools/electron/common.nix

@@ -86,26 +86,6 @@ in
 
   patches =
     base.patches
-    # Fix building with Rust 1.86+
-    # electron_33 and electron_34 use older chromium versions which expect rust
-    # to provide the older `adler` library instead of the newer `adler2` library
-    # This patch makes those older versions also use the new adler2 library
-    ++ lib.optionals (lib.versionOlder info.version "35") [
-      ./use-rust-adler2.patch
-    ]
-    # Requirements for the next section
-    ++ lib.optionals (lib.versionOlder info.version "35") [
-      (fetchpatch {
-        name = "Avoid-build-rust-PartitionAlloc-dep-when-not-build_with_chromium.patch";
-        url = "https://github.com/chromium/chromium/commit/ee94f376a0dd642a93fbf4a5fa8e7aa8fb2a69b5.patch";
-        hash = "sha256-qGjy9VZ4d3T5AuqOrBKEajBswwBU/7j0n80rpvHZLmM=";
-      })
-      (fetchpatch {
-        name = "Suppress-unsafe_libc_call-warning-for-rust-remap_alloc-cc.patch";
-        url = "https://github.com/chromium/chromium/commit/d5d79d881e74c6c8630f7d2f3affd4f656fdeb4e.patch";
-        hash = "sha256-1oy5WRvNzKuUTJkt8kULUqE4JU+EKEV1PB9QN8HF4SE=";
-      })
-    ]
     # Fix building with Rust 1.87+
     # https://issues.chromium.org/issues/407024458
     ++ lib.optionals (lib.versionOlder info.version "37") [

pkgs/development/tools/electron/use-rust-adler2.patch

@@ -1,13 +0,0 @@
-diff --git a/build/rust/std/BUILD.gn b/build/rust/std/BUILD.gn
-index 6b996aa1fe3865187d02c017e56c0918bcc9b8f4..68b085be200fa4f116aa709b9157c4d2efdf7d6a 100644
---- a/build/rust/std/BUILD.gn
-+++ b/build/rust/std/BUILD.gn
-@@ -89,7 +89,7 @@ if (toolchain_has_rust) {
-     # These are no longer present in the Windows toolchain.
-     stdlib_files += [
-       "addr2line",
--      "adler",
-+      "adler2",
-       "gimli",
-       "libc",
-       "memchr",