wasm: Remove `wavm` (#32872)

Signed-off-by: Ryan Northey <ryan@synca.io>

Mirrored from https://github.com/envoyproxy/envoy @ 19726b78c218801069d74b796727d76b89e2b54c

envoy/extensions/wasm/v3/wasm.proto

@@ -50,7 +50,7 @@ message VmConfig {
   string vm_id = 1;
 
   // The Wasm runtime type, defaults to the first available Wasm engine used at Envoy build-time.
-  // The priority to search for the available engine is: v8 -> wasmtime -> wamr -> wavm.
+  // The priority to search for the available engine is: v8 -> wasmtime -> wamr.
   // Available Wasm runtime types are registered as extensions. The following runtimes are included
   // in Envoy code base:
   //
@@ -68,11 +68,6 @@ message VmConfig {
   // **envoy.wasm.runtime.wamr**: `WAMR <https://github.com/bytecodealliance/wasm-micro-runtime/>`_-based WebAssembly runtime.
   // This runtime is not enabled in the official build.
   //
-  // .. _extension_envoy.wasm.runtime.wavm:
-  //
-  // **envoy.wasm.runtime.wavm**: `WAVM <https://wavm.github.io/>`_-based WebAssembly runtime.
-  // This runtime is not enabled in the official build.
-  //
   // .. _extension_envoy.wasm.runtime.wasmtime:
   //
   // **envoy.wasm.runtime.wasmtime**: `Wasmtime <https://wasmtime.dev/>`_-based WebAssembly runtime.