chore: Enable fat LTO by default (#10417)

**Description:**

Ensure that we use LTO for release binaries.

Author: kdy1

bindings/Cargo.toml

@@ -63,7 +63,7 @@ resolver = "2"
 # lto = true
 
 # We use CARGO_PROFILE_RELEASE_LTO for production builds
-# lto = "fat"
+lto = "fat"
 
 # debug = true
 # opt-level = 'z'
@@ -73,9 +73,6 @@ strip = "symbols"
 
   [profile.release.package]
 
-    [profile.release.package.std]
-    opt-level = 3
-
     [profile.release.package.wasmer-wasix]
     opt-level = "s"