Remove .mk prebuilt file and .mk file generation from codegen (#35540)

Summary:
Pull Request resolved: #35540

We now don't need to generate .mk files anymore, therefore I'm removing
this logic from the codegen. In RN 0.72 users should be fully migrated
to CMake.

Changelog:
[Android] [Removed] - Remove .mk prebuilt file and .mk file generation from codegen

Reviewed By: rshest

Differential Revision: D41654122

fbshipit-source-id: 3a3c01fa8ab4d48460338e1a9ce2ecbd6df25f47

packages/react-native-codegen/src/generators/modules/GenerateModuleJniH.js

@@ -62,52 +62,6 @@ std::shared_ptr<TurboModule> ${libraryName}_ModuleProvider(const std::string &mo
 `;
 };
 
-// Note: this Android.mk template includes dependencies for both NativeModule and components.
-const AndroidMkTemplate = ({libraryName}: $ReadOnly<{libraryName: string}>) => {
-  return `# Copyright (c) Meta Platforms, Inc. and affiliates.
-#
-# This source code is licensed under the MIT license found in the
-# LICENSE file in the root directory of this source tree.
-
-LOCAL_PATH := $(call my-dir)
-
-include $(CLEAR_VARS)
-
-LOCAL_MODULE := react_codegen_${libraryName}
-
-LOCAL_C_INCLUDES := $(LOCAL_PATH)
-
-LOCAL_SRC_FILES := $(wildcard $(LOCAL_PATH)/*.cpp) $(wildcard $(LOCAL_PATH)/react/renderer/components/${libraryName}/*.cpp)
-LOCAL_SRC_FILES := $(subst $(LOCAL_PATH)/,,$(LOCAL_SRC_FILES))
-
-LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH) $(LOCAL_PATH)/react/renderer/components/${libraryName}
-
-LOCAL_SHARED_LIBRARIES := libfbjni \
-  libfolly_runtime \
-  libglog \
-  libjsi \
-  libreact_codegen_rncore \
-  libreact_debug \
-  libreact_nativemodule_core \
-  libreact_render_core \
-  libreact_render_debug \
-  libreact_render_graphics \
-  libreact_render_imagemanager \
-  libreact_render_mapbuffer \
-  librrc_image \
-  librrc_view \
-  libturbomodulejsijni \
-  libyoga
-
-LOCAL_CFLAGS := \\
-  -DLOG_TAG=\\"ReactNative\\"
-
-LOCAL_CFLAGS += -fexceptions -frtti -std=c++17 -Wall
-
-include $(BUILD_SHARED_LIBRARY)
-`;
-};
-
 // Note: this CMakeLists.txt template includes dependencies for both NativeModule and components.
 const CMakeListsTemplate = ({
   libraryName,
@@ -188,12 +142,6 @@ module.exports = {
     });
     return new Map([
       [`jni/${fileName}`, replacedTemplate],
-      [
-        'jni/Android.mk',
-        AndroidMkTemplate({
-          libraryName: libraryName,
-        }),
-      ],
       ['jni/CMakeLists.txt', CMakeListsTemplate({libraryName: libraryName})],
     ]);
   },