diff --git a/.buckconfig b/.buckconfig
deleted file mode 100644
index 4147e394..00000000
--- a/.buckconfig
+++ /dev/null
@@ -1,10 +0,0 @@
-[cxx]
-  gtest_dep = //lib/gtest:gtest
-[android]
-  target = android-25
-  build_tools_version = 26.0.2
-[ndk]
-  ndk_version = 15.2.4203891
-  compiler = clang
-  app_platform = android-21
-  cpu_abis = arm64, armv7, x86, x86_64
diff --git a/mode/opt b/mode/opt
deleted file mode 100644
index 6db2b79c..00000000
--- a/mode/opt
+++ /dev/null
@@ -1,4 +0,0 @@
---config
-cxx.cxxflags=-O3 -DNDEBUG
---config
-cxx.cflags=-O3 -DNDEBUG