Remove local nokogiri build workaround from tracked bundler config

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: iangmaia

.bundle/config

@@ -3,4 +3,3 @@ BUNDLE_PATH: "vendor/bundle"
 BUNDLE_FORCE_RUBY_PLATFORM: "true"
 BUNDLE_SPECIFIC_PLATFORM: "false"
 BUNDLE_JOBS: "16"
-BUNDLE_BUILD__NOKOGIRI: "--with-cflags=-Wno-default-const-init-field-unsafe"