clean up stale error checks and panics

delete unused functions
a few comments

1 files changed, 0 insertions, 1 deletions

diff --git a/spinlock.h b/spinlock.h
index f124f15..ae5ad1f 100644
--- a/spinlock.h
+++ b/spinlock.h
@@ -1,5 +1,4 @@
 struct spinlock {
-  uint magic;
   char *name;
   uint locked;
   int cpu;