[mojo] Delete third_party/mojo

mojo/shell/runner/child/BUILD.gn

Index: mojo/shell/runner/child/BUILD.gn
diff --git a/mojo/shell/runner/child/BUILD.gn b/mojo/shell/runner/child/BUILD.gn
index 0ea9929de9e1d602173cddef03fc97f447c0fd75..55779bf1e1cd2e21b1ec81770e7fdf494b1bdab6 100644
--- a/mojo/shell/runner/child/BUILD.gn
+++ b/mojo/shell/runner/child/BUILD.gn
@@ -22,11 +22,11 @@ source_set("lib") {
   deps = [
     ":interfaces",
     "//base",
+    "//mojo/edk/system",
     "//mojo/message_pump",
     "//mojo/platform_handle:platform_handle_impl",
     "//mojo/shell/public/interfaces",
     "//mojo/shell/runner/common",
-    "//third_party/mojo/src/mojo/edk/system",
   ]
 }
 
@@ -54,11 +54,11 @@ source_set("test_native_main") {
 
   deps = [
     "//base",
+    "//mojo/edk/system",
     "//mojo/gles2",
     "//mojo/message_pump",
     "//mojo/shell/public/cpp",
     "//mojo/shell/runner/child:lib",
-    "//third_party/mojo/src/mojo/edk/system",
   ]
 }