Minimize the CODEOWNERS file

Avoid spamming notifications to the component code owners now that
development has moved out to intel/llvm.

Author: kbenzie

.github/CODEOWNERS

@@ -1,31 +1 @@
-*                               @oneapi-src/unified-runtime-maintain
-
-# Level Zero adapter
-source/adapters/level_zero      @oneapi-src/unified-runtime-level-zero-write
-test/adapters/level_zero        @oneapi-src/unified-runtime-level-zero-write
-
-# CUDA and HIP adapters
-source/adapters/cuda            @oneapi-src/unified-runtime-cuda-write
-test/adapters/cuda              @oneapi-src/unified-runtime-cuda-write
-source/adapters/hip             @oneapi-src/unified-runtime-hip-write
-test/adapters/hip               @oneapi-src/unified-runtime-hip-write
-
-# OpenCL adapter
-source/adapters/opencl          @oneapi-src/unified-runtime-opencl-write
-test/adapters/opencl            @oneapi-src/unified-runtime-opencl-write
-
-# Native CPU adapter
-source/adapters/native_cpu          @oneapi-src/unified-runtime-native-cpu-write
-test/adapters/native_cpu            @oneapi-src/unified-runtime-native-cpu-write
-
-# Command-buffer experimental feature
-source/adapters/**/command_buffer.*     @oneapi-src/unified-runtime-command-buffer-write
-scripts/core/EXP-COMMAND-BUFFER.rst     @oneapi-src/unified-runtime-command-buffer-write
-scripts/core/exp-command-buffer.yml     @oneapi-src/unified-runtime-command-buffer-write
-test/conformance/exp_command_buffer**   @oneapi-src/unified-runtime-command-buffer-write
-
-# Bindless Images experimental feature
-source/adapters/**/image.*              @oneapi-src/unified-runtime-bindless-images-write
-scripts/core/EXP-BINDLESS-IMAGES.rst    @oneapi-src/unified-runtime-bindless-images-write
-scripts/core/exp-bindless-images.yml    @oneapi-src/unified-runtime-bindless-images-write
-test/conformance/exp_bindless_images**  @oneapi-src/unified-runtime-bindless-images-write
+* @oneapi-src/unified-runtime-maintain