diff --git a/git-compat-util.h b/git-compat-util.h
index e4a306dd56..a06d4f3809 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -1527,26 +1527,6 @@ int cmd_main(int, const char **);
 int common_exit(const char *file, int line, int code);
 #define exit(code) exit(common_exit(__FILE__, __LINE__, (code)))
 
-/*
- * You can mark a stack variable with UNLEAK(var) to avoid it being
- * reported as a leak by tools like LSAN or valgrind. The argument
- * should generally be the variable itself (not its address and not what
- * it points to). It's safe to use this on pointers which may already
- * have been freed, or on pointers which may still be in use.
- *
- * Use this _only_ for a variable that leaks by going out of scope at
- * program exit (so only from cmd_* functions or their direct helpers).
- * Normal functions, especially those which may be called multiple
- * times, should actually free their memory. This is only meant as
- * an annotation, and does nothing in non-leak-checking builds.
- */
-#ifdef SUPPRESS_ANNOTATED_LEAKS
-void unleak_memory(const void *ptr, size_t len);
-#define UNLEAK(var) unleak_memory(&(var), sizeof(var))
-#else
-#define UNLEAK(var) do {} while (0)
-#endif
-
 #define z_const
 #include <zlib.h>
 
diff --git a/usage.c b/usage.c
index 7a2f7805f5..29a9725784 100644
--- a/usage.c
+++ b/usage.c
@@ -350,18 +350,3 @@ void bug_fl(const char *file, int line, const char *fmt, ...)
 	trace2_cmd_error_va(fmt, ap);
 	va_end(ap);
 }
-
-#ifdef SUPPRESS_ANNOTATED_LEAKS
-void unleak_memory(const void *ptr, size_t len)
-{
-	static struct suppressed_leak_root {
-		struct suppressed_leak_root *next;
-		char data[FLEX_ARRAY];
-	} *suppressed_leaks;
-	struct suppressed_leak_root *root;
-
-	FLEX_ALLOC_MEM(root, data, ptr, len);
-	root->next = suppressed_leaks;
-	suppressed_leaks = root;
-}
-#endif