Index: flate2/Cargo.toml
===================================================================
--- flate2.orig/Cargo.toml
+++ flate2/Cargo.toml
@@ -46,10 +46,6 @@ rustdoc-args = [
     "docsrs",
 ]
 
-[dependencies.cloudflare-zlib-sys]
-version = "0.3.0"
-optional = true
-
 [dependencies.crc32fast]
 version = "1.2.0"
 
@@ -80,4 +76,0 @@ version = "0.8"
-cloudflare_zlib = [
-    "any_zlib",
-    "cloudflare-zlib-sys",
-]