Revert "axmap: ensure we lock down the maps for shared access"

This reverts commit 12bde3697fc230d7af560cecc8ac469ab47643f8.
diff --git a/Makefile b/Makefile
index d27ecaf..52e515b 100644
--- a/Makefile
+++ b/Makefile
@@ -186,7 +186,7 @@
 T_ZIPF_PROGS = t/fio-genzipf
 
 T_AXMAP_OBJS = t/axmap.o
-T_AXMAP_OBJS += lib/lfsr.o lib/axmap.o gettime.o mutex.o t/log.o t/debug.o
+T_AXMAP_OBJS += lib/lfsr.o lib/axmap.o
 T_AXMAP_PROGS = t/axmap
 
 T_LFSR_TEST_OBJS = t/lfsr-test.o