diff --git a/c_cmocka/src/sample.c b/c_cmocka/src/sample.c
deleted file mode 100644
index c548e1f3..00000000
--- a/c_cmocka/src/sample.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include "sample.h"
-
-int add(int left, int right) {
-    return left + right;
-}
\ No newline at end of file
diff --git a/c_cmocka/src/sample.h b/c_cmocka/src/sample.h
deleted file mode 100644
index 2bff1afc..00000000
--- a/c_cmocka/src/sample.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef SAMPLE_H
-#define SAMPLE_H
-
-int add(int left, int right);
-
-#endif //SAMPLE_H