Remove unused bpf map 'iptr'
diff --git a/tools/softirqs.py b/tools/softirqs.py
index 3d4f8d2..d98b938 100755
--- a/tools/softirqs.py
+++ b/tools/softirqs.py
@@ -74,7 +74,6 @@
 } account_val_t;
 
 BPF_HASH(start, entry_key_t, account_val_t);
-BPF_HASH(iptr, u32);
 BPF_HISTOGRAM(dist, irq_key_t);
 
 TRACEPOINT_PROBE(irq, softirq_entry)