Remove reference to hypleright-host executabe_heap feature (#491)

Signed-off-by: Simon Davies <simongdavies@users.noreply.github.com>
Signed-off-by: James Sturtevant <jsturtevant@gmail.com>
Co-authored-by: James Sturtevant <jsturtevant@gmail.com>

Author: simongdavies

Cargo.toml

@@ -18,6 +18,6 @@ hyperlight-component-macro = { version = "0.15.0" }
 hyperlight-component-util = { version = "0.15.0" }
 hyperlight-guest = { version = "0.15.0" }
 hyperlight-guest-bin = { version = "0.15.0"}
-hyperlight-host = { version = "0.15.0", default-features = false,  features = ["executable_heap"] }
+hyperlight-host = { version = "0.15.0", default-features = false }
 hyperlight-wasm-macro = { version = "0.14.0", path = "src/hyperlight_wasm_macro" }
 hyperlight-wasm-runtime = { version = "0.14.0", path = "src/hyperlight_wasm_runtime" }