fixed faulty merge
diff --git a/build.yaml b/build.yaml
index 9fd667d..ca343cf 100644
--- a/build.yaml
+++ b/build.yaml
@@ -137,9 +137,6 @@
   - src/core/httpcli/format_request.h
   - src/core/httpcli/httpcli.h
   - src/core/httpcli/parser.h
-  - src/core/iomgr/alarm.h
-  - src/core/iomgr/alarm_heap.h
-  - src/core/iomgr/alarm_internal.h
   - src/core/iomgr/closure.h
   - src/core/iomgr/endpoint.h
   - src/core/iomgr/endpoint_pair.h
@@ -167,6 +164,9 @@
   - src/core/iomgr/tcp_server.h
   - src/core/iomgr/tcp_windows.h
   - src/core/iomgr/time_averaged_stats.h
+  - src/core/iomgr/timer.h
+  - src/core/iomgr/timer_heap.h
+  - src/core/iomgr/timer_internal.h
   - src/core/iomgr/udp_server.h
   - src/core/iomgr/wakeup_fd_pipe.h
   - src/core/iomgr/wakeup_fd_posix.h
@@ -249,8 +249,6 @@
   - src/core/httpcli/format_request.c
   - src/core/httpcli/httpcli.c
   - src/core/httpcli/parser.c
-  - src/core/iomgr/alarm.c
-  - src/core/iomgr/alarm_heap.c
   - src/core/iomgr/closure.c
   - src/core/iomgr/endpoint.c
   - src/core/iomgr/endpoint_pair_posix.c
@@ -281,6 +279,8 @@
   - src/core/iomgr/tcp_server_windows.c
   - src/core/iomgr/tcp_windows.c
   - src/core/iomgr/time_averaged_stats.c
+  - src/core/iomgr/timer.c
+  - src/core/iomgr/timer_heap.c
   - src/core/iomgr/udp_server.c
   - src/core/iomgr/wakeup_fd_eventfd.c
   - src/core/iomgr/wakeup_fd_nospecial.c
@@ -783,26 +783,6 @@
   - winsock
   - global
 targets:
-- name: alarm_heap_test
-  build: test
-  language: c
-  src:
-  - test/core/iomgr/alarm_heap_test.c
-  deps:
-  - grpc_test_util
-  - grpc
-  - gpr_test_util
-  - gpr
-- name: alarm_list_test
-  build: test
-  language: c
-  src:
-  - test/core/iomgr/alarm_list_test.c
-  deps:
-  - grpc_test_util
-  - grpc
-  - gpr_test_util
-  - gpr
 - name: alpn_test
   build: test
   language: c
@@ -1510,6 +1490,26 @@
   - grpc
   - gpr_test_util
   - gpr
+- name: timer_heap_test
+  build: test
+  language: c
+  src:
+  - test/core/iomgr/timer_heap_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: timer_list_test
+  build: test
+  language: c
+  src:
+  - test/core/iomgr/timer_list_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: timers_test
   build: test
   language: c