Remove all service manifests from data_deps

services/service_manager/README.md

 # Service Manager User Guide
 
 ## What is the Service Manager?
 
 The Service Manager is a tool that brokers connections and capabilities between
 and manages instances of components, referred to henceforth as “services”.
 
 The Service Manager performs the following functions:
 
 * Brokering connections between services, including communicating policies such
@@ skipping 112 matching lines @@
     }
 
 **BUILD.gn:**
 
     import("//services/service_manager/public/cpp/service.gni")
     import("//services/service_manager/public/service_manifest.gni")
 
     service("my_service") {
       sources = [ "my_service.cc" ]
       deps = [ "//base", "//services/service_manager/public/cpp" ]
-      data_deps = [ ":manifest" ]
     }
 
     service_manifest("manifest") {
       name = "my_service"
       source = "manifest.json"
     }
 
 What does all this do? Building the app target produces two files in the output
 directory: Packages/my_service/my_service.library and
 Packages/my_service/manifest.json. app.library is a DSO loaded by the Service
@@ skipping 660 matching lines @@
 Under the Hood
 Four major components: Service Manager API (Mojom), Service Manager, Catalog,
 Service Manager Client Lib.
 The connect flow, catalog, etc.
 Capability brokering in the Service Manager
 Userids
 
 Finer points:
 
 Service Names: mojo, exe