Revert "bootstat: Refactor init/utils/boot_clock into base/chrono_utils."

This reverts commit 7c92e484503f239000ef97ef5b067907fbeaa4a6.

Mac sdk still broken (despite testing locally).

Change-Id: I7d9206e15997cd0efe081bd3fa17d53d2b20ec32
diff --git a/base/Android.bp b/base/Android.bp
index 7f81915..b9a6e0b 100644
--- a/base/Android.bp
+++ b/base/Android.bp
@@ -42,32 +42,21 @@
             srcs: [
                 "errors_unix.cpp",
                 "properties.cpp",
-                "chrono_utils.cpp",
             ],
             cppflags: ["-Wexit-time-destructors"],
         },
         darwin: {
-            srcs: [
-                "chrono_utils.cpp",
-                "errors_unix.cpp",
-            ],
+            srcs: ["errors_unix.cpp"],
             cppflags: ["-Wexit-time-destructors"],
         },
         linux_bionic: {
-            srcs: [
-                "chrono_utils.cpp",
-                "errors_unix.cpp",
-            ],
+            srcs: ["errors_unix.cpp"],
             cppflags: ["-Wexit-time-destructors"],
             enabled: true,
         },
         linux: {
-            srcs: [
-                "chrono_utils.cpp",
-                "errors_unix.cpp",
-            ],
+            srcs: ["errors_unix.cpp"],
             cppflags: ["-Wexit-time-destructors"],
-            host_ldlibs: ["-lrt"],
         },
         windows: {
             srcs: [
@@ -99,14 +88,7 @@
     ],
     target: {
         android: {
-            srcs: [
-                "chrono_utils_test.cpp",
-                "properties_test.cpp"
-            ],
-        },
-        linux: {
-            srcs: ["chrono_utils_test.cpp"],
-            host_ldlibs: ["-lrt"],
+            srcs: ["properties_test.cpp"],
         },
         windows: {
             srcs: ["utf8_test.cpp"],