remove symlink to obsolete run_remote_tests.sh

Deprecated in favor of test_that.

BUG=None
TEST=None

Change-Id: I031408b940d21b8488c6862a96dc93e418744351
Reviewed-on: https://chromium-review.googlesource.com/270510
Commit-Ready: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Christopher Wiley <wiley@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
diff --git a/run_remote_tests.sh b/run_remote_tests.sh
deleted file mode 120000
index 9cc8d4d..0000000
--- a/run_remote_tests.sh
+++ /dev/null
@@ -1 +0,0 @@
-../platform/crostestutils/run_remote_tests.sh
\ No newline at end of file