Remove old constant
diff --git a/src/core/lib/iomgr/executor.c b/src/core/lib/iomgr/executor.c
index edc3913..fa8c5bf 100644
--- a/src/core/lib/iomgr/executor.c
+++ b/src/core/lib/iomgr/executor.c
@@ -32,8 +32,6 @@
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/support/spinlock.h"
 
-#define MAX_DEPTH 2
-
 typedef struct {
   gpr_mu mu;
   gpr_cv cv;