Revert of Build services as standalone executables

services/service_manager/switches.cc

Index: services/service_manager/switches.cc
diff --git a/services/service_manager/switches.cc b/services/service_manager/switches.cc
index c8b9d2f821fd56e140a12435b37c69ecd0f900f5..54221de4e0f02b9ead0c07917cfc846ffac526a1 100644
--- a/services/service_manager/switches.cc
+++ b/services/service_manager/switches.cc
@@ -13,5 +13,8 @@
 // Disables the sandbox for debugging.
 const char kNoSandbox[] = "no-sandbox";
 
+// Load apps in a single processes.
+const char kSingleProcess[] = "single-process";
+
 }  // namespace switches
 }  // namespace service_manager