Index: libssh2-sys/Cargo.toml
===================================================================
--- libssh2-sys.orig/Cargo.toml
+++ libssh2-sys/Cargo.toml
@@ -43,15 +43,9 @@ version = "1.0.25"
 version = "0.3.11"
 
 [features]
-openssl-on-win32 = ["openssl-sys"]
-zlib-ng-compat = ["libz-sys/zlib-ng"]
 
 [target."cfg(target_env = \"msvc\")".build-dependencies.vcpkg]
 version = "0.2"
 
 [target."cfg(unix)".dependencies.openssl-sys]
 version = "0.9.35"
-
-[target."cfg(windows)".dependencies.openssl-sys]
-version = "0.9.35"
-optional = true