Removing ICU dependencies from skparagraph BUILD.gn file

(and from the sources, too)

Change-Id: I9d8ff51c91aad4b770b1f183c04734d31252b851
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/313148
Commit-Queue: Julia Lavrova <jlavrova@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
24 files changed