misc/klayout: remove implicit deps

Author: proppy

misc/klayout/meta.yaml

@@ -40,8 +40,6 @@ requirements:
     - python >3.6
     - ruby >2
     - qt >=5
-    - icu
-    - zlib
   run:
     - {{ pin_compatible('python', min_pin='x.x', max_pin='x.x') }}
     - {{ pin_compatible('ruby', min_pin='x.x', max_pin='x.x') }}