diff --git a/example/.cargo/config b/example/.cargo/config
deleted file mode 100644
index 7a0149c7934de4ea71ec751f66cde42dff6dd37b..0000000000000000000000000000000000000000
--- a/example/.cargo/config
+++ /dev/null
@@ -1,10 +0,0 @@
-[target.thumbv7em-none-eabi]
-rustflags = [
-  "-C", "linker=arm-none-eabi-gcc",
-  "-C", "link-args=-Tl0dable.ld -n -pie -fPIC",
-  "-C", "relocation-model=pic",
-]
-
-[build]
-target = "thumbv7em-none-eabi"
-
diff --git a/rkanoid/.cargo/config b/rkanoid/.cargo/config
deleted file mode 100644
index 55966dfcb61766b52ef9b3573c1de6abdd78c656..0000000000000000000000000000000000000000
--- a/rkanoid/.cargo/config
+++ /dev/null
@@ -1,9 +0,0 @@
-[target.thumbv7em-none-eabi]
-rustflags = [
-  "-C", "linker=arm-none-eabi-gcc",
-  "-C", "link-args=-Tl0dable.ld -n -pie -fPIC",
-  "-C", "relocation-model=pic",
-]
-
-[build]
-target = "thumbv7em-none-eabi"