healthd use vintf_fragments

This encourages device manufacturers to use
service.override over service and to remove healthd
on device, because it is one less step to do.

Test: make VINTF metadata
Bug: 66917623
Change-Id: I447395450060cdf17731514bb9a5e3ed912bbc66
Merged-In: I447395450060cdf17731514bb9a5e3ed912bbc66
(cherry picked from commit ae005c46101883a9c7938de9bc0286cfc4e7b7b8)
diff --git a/health/2.0/README b/health/2.0/README
index 11e6a7a..9f77b83 100644
--- a/health/2.0/README
+++ b/health/2.0/README
@@ -6,12 +6,7 @@
 1. If the device does not have a vendor-specific libhealthd AND does not
    implement storage-related APIs, just do the following:
 
-    1.1 (recommended) To remove healthd from the build,
-        PRODUCT_PACKAGES += android.hardware.health@2.0-service.override
-        DEVICE_FRAMEWORK_MANIFEST_FILE += \
-            system/libhidl/vintfdata/manifest_healthd_exclude.xml
-    1.2 To keep healthd in the build,
-        PRODUCT_PACKAGES += android.hardware.health@2.0-service
+    PRODUCT_PACKAGES += android.hardware.health@2.0-service
 
    Otherwise, continue to Step 2.
 
@@ -53,16 +48,12 @@
 
     header_libs: ["libhealthd_headers"],
 
-    // Uncomment the following to remove healthd from the build.
-    // overrides: [
-    //     "healthd",
-    // ],
+    overrides: [
+        "healthd",
+    ],
 }
 
-    3.1 (recommended) To remove healthd from the build, keep "overrides"
-          section, and include the following in device.mk:
-            DEVICE_FRAMEWORK_MANIFEST_FILE += \
-                system/libhidl/vintfdata/manifest_healthd_exclude.xml
+    3.1 (recommended) To remove healthd from the build, keep "overrides" section.
     3.2 To keep healthd in the build, remove "overrides" section.
 
 4. Create device/<manufacturer>/<device>/health/android.hardware.health@2.0-service.<device>.rc