[iOS] Clean up xcode_test_application_name usages in XcodeWriter.

https://chromium-review.googlesource.com/c/566592 This CL uses
test_application_name in BUILD files to specify the relationship
between XCTest target and corresponding test application target.
So, clean up the code in XcodeWriter.

Bug: 741147, 709289
Change-Id: I4ce05f98c96bb05cf7cba1d1b67651996343c995
Reviewed-on: https://chromium-review.googlesource.com/614748
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#494791}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 82cd07781b74cde019826c73e9706f9c113902b7
1 file changed
tree: ddd3f8a14a4e4ffcf3773192259586cda88ea9cb
  1. tools/