diff --git a/cmake/toolchain_afl_i686.cmake b/cmake/toolchain_afl_i686.cmake
deleted file mode 100644
index f4287b2231..0000000000
--- a/cmake/toolchain_afl_i686.cmake
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2015 Samsung Electronics Co., Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-include(CMakeForceCompiler)
-
-set(CMAKE_SYSTEM_NAME Linux)
-set(CMAKE_SYSTEM_PROCESSOR i686)
-
-CMAKE_FORCE_C_COMPILER(afl-gcc GNU)
diff --git a/cmake/toolchain_afl_x86_64.cmake b/cmake/toolchain_afl_x86_64.cmake
deleted file mode 100644
index bfa4722d91..0000000000
--- a/cmake/toolchain_afl_x86_64.cmake
+++ /dev/null
@@ -1,22 +0,0 @@
-# Copyright 2015 Samsung Electronics Co., Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-include(CMakeForceCompiler)
-
-set(CMAKE_SYSTEM_NAME Linux)
-set(CMAKE_SYSTEM_PROCESSOR x86_64)
-
-CMAKE_FORCE_C_COMPILER(afl-gcc GNU)
-
-set(FLAGS_COMMON_ARCH -ffixed-rbp)
diff --git a/cmake/toolchain_darwin_x86_64.cmake b/cmake/toolchain_darwin_x86_64.cmake
deleted file mode 100644
index 2e78e304a3..0000000000
--- a/cmake/toolchain_darwin_x86_64.cmake
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2015-2016 Samsung Electronics Co., Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set(CMAKE_SYSTEM_NAME Darwin)
-set(CMAKE_SYSTEM_PROCESSOR x86_64)
-
-find_program(CMAKE_C_COMPILER NAMES gcc cc)
-
-#set(FLAGS_COMMON_ARCH )
diff --git a/cmake/toolchain_linux_i686.cmake b/cmake/toolchain_linux_i686.cmake
deleted file mode 100644
index 72dc746ff7..0000000000
--- a/cmake/toolchain_linux_i686.cmake
+++ /dev/null
@@ -1,18 +0,0 @@
-# Copyright 2015-2016 Samsung Electronics Co., Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set(CMAKE_SYSTEM_NAME Linux)
-set(CMAKE_SYSTEM_PROCESSOR i686)
-
-find_program(CMAKE_C_COMPILER NAMES i686-linux-gnu-gcc i686-unknown-linux-gnu-gcc)
diff --git a/cmake/toolchain_linux_x86_64.cmake b/cmake/toolchain_linux_x86_64.cmake
deleted file mode 100644
index db73e23e02..0000000000
--- a/cmake/toolchain_linux_x86_64.cmake
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright 2015-2016 Samsung Electronics Co., Ltd.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-set(CMAKE_SYSTEM_NAME Linux)
-set(CMAKE_SYSTEM_PROCESSOR x86_64)
-
-find_program(CMAKE_C_COMPILER NAMES x86_64-linux-gnu-gcc x86_64-unknown-linux-gnu-gcc)
-
-set(FLAGS_COMMON_ARCH -ffixed-rbp)