[ddc,frontend_server] Remove macro tests

Change-Id: I1227eaed501e0175859e3c7759d88a8b19e8f4d1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/406964
Reviewed-by: Nicholas Shahan <[email protected]>
Commit-Queue: Johnni Winther <[email protected]>
Reviewed-by: Jens Johansen <[email protected]>
Reviewed-by: Jake Macdonald <[email protected]>

Author: johnniwinther

pkg/dev_compiler/pubspec.yaml

@@ -25,11 +25,9 @@ dependencies:
 dev_dependencies:
   browser_launcher: any
   expect: any
-  frontend_server: any
   http_multi_server: any
   js: any
   lints: any
-  macros: any
   modular_test: any
   reload_test: any
   shelf: any