diff --git a/extras/thread/component.mk b/extras/thread/component.mk
deleted file mode 100644
index 46193ef..0000000
--- a/extras/thread/component.mk
+++ /dev/null
@@ -1,3 +0,0 @@
-# Component makefile for extras/thread
-
-INC_DIRS += $(ROOT)extras
diff --git a/extras/timer/component.mk b/extras/timer/component.mk
deleted file mode 100644
index 255ebae..0000000
--- a/extras/timer/component.mk
+++ /dev/null
@@ -1,3 +0,0 @@
-# Component makefile for extras/timer
-
-INC_DIRS += $(ROOT)extras