[wasi] Remove unused string parameter from mono_wasm_load_runtime

Context: #104356 (comment)

src/mono/wasi/mono-include/driver.h

@@ -5,7 +5,7 @@
 #include <mono/metadata/object.h>
 #include <mono/metadata/loader.h>
 
-void mono_wasm_load_runtime (const char *unused, int debug_level);
+void mono_wasm_load_runtime (int debug_level);
 int mono_wasm_add_assembly (const char *name, const unsigned char *data, unsigned int size);
 MonoAssembly* mono_wasm_assembly_load(const char *name);
 MonoMethod* mono_wasi_assembly_get_entry_point (MonoAssembly *assembly);

src/mono/wasi/runtime/driver.c

@@ -242,7 +242,7 @@ load_runtimeconfig (void)
 }
 
 void
-mono_wasm_load_runtime (const char *unused, int debug_level)
+mono_wasm_load_runtime (int debug_level)
 {
 	const char *interp_opts = "";
 

src/mono/wasi/runtime/main.c

@@ -49,7 +49,7 @@ int initialize_runtime()
 #ifndef WASM_SINGLE_FILE
 	mono_set_assemblies_path("managed");
 #endif
-	mono_wasm_load_runtime("", 0);
+	mono_wasm_load_runtime(0);
 
 #ifdef WASI_AFTER_RUNTIME_LOADED_CALLS
 	// This is supplied from the MSBuild itemgroup @(WasiAfterRuntimeLoaded)