Revert "fix: Prioritise local cpp (use default as fallback) (facebook#48340)"

This reverts commit e6374c6.

Author: joemun

packages/react-native/ReactAndroid/cmake-utils/ReactNative-application.cmake

@@ -34,24 +34,9 @@ set(BUILD_DIR ${PROJECT_BUILD_DIR})
 file(TO_CMAKE_PATH "${BUILD_DIR}" BUILD_DIR)
 file(TO_CMAKE_PATH "${REACT_ANDROID_DIR}" REACT_ANDROID_DIR)
 
-if (PROJECT_ROOT_DIR)
-# This empty `if` is just to silence a CMake warning and make sure the `PROJECT_ROOT_DIR`
-# variable is defined if user need to access it.
-endif ()
-
-file(GLOB override_cpp_SRC CONFIGURE_DEPENDS *.cpp)
-# We check if the user is providing a custom OnLoad.cpp file. If so, we pick that
-# for compilation. Otherwise we fallback to using the `default-app-setup/OnLoad.cpp`
-# file instead.
-if(override_cpp_SRC)
-        file(GLOB input_SRC CONFIGURE_DEPENDS
-                *.cpp
-                ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
-else()
-        file(GLOB input_SRC CONFIGURE_DEPENDS
-                ${REACT_ANDROID_DIR}/cmake-utils/default-app-setup/*.cpp
-                ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
-endif()
+file(GLOB input_SRC CONFIGURE_DEPENDS
+        ${REACT_ANDROID_DIR}/cmake-utils/default-app-setup/*.cpp
+        ${BUILD_DIR}/generated/autolinking/src/main/jni/*.cpp)
 
 add_library(${CMAKE_PROJECT_NAME} SHARED ${input_SRC})