Remove deprecated honeycomb-beeline gem (#4642)

Honeycomb Beeline for Ruby is deprecated since August 2025.
They recommend to replace it with OpenTelementry.
More details can be found here:
honeycombio/beeline-ruby#244

Author: johha

Gemfile

@@ -10,7 +10,6 @@ gem 'eventmachine', '~> 1.2.7'
 gem 'fluent-logger'
 gem 'googleapis-common-protos', '>= 1.8.0'
 gem 'hashdiff'
-gem 'honeycomb-beeline'
 gem 'httpclient'
 gem 'json-diff'
 gem 'json_pure'

Gemfile.lock

@@ -155,9 +155,6 @@ GEM
     faraday_middleware (0.14.0)
       faraday (>= 0.7.4, < 1.0)
     ffi (1.16.3)
-    ffi-compiler (1.3.2)
-      ffi (>= 1.15.5)
-      rake
     fluent-logger (0.10.0)
       logger (~> 1.6)
       msgpack (>= 1.0.0, < 2)
@@ -259,18 +256,9 @@ GEM
       google-protobuf (>= 3.25, < 5.0)
       googleapis-common-protos-types (~> 1.0)
     hashdiff (1.2.1)
-    honeycomb-beeline (3.1.0)
-      libhoney (>= 2.3.0)
-    http (5.2.0)
-      addressable (~> 2.8)
-      base64 (~> 0.1)
-      http-cookie (~> 1.0)
-      http-form_data (~> 2.2)
-      llhttp-ffi (~> 0.5.0)
     http-accept (1.7.0)
     http-cookie (1.0.5)
       domain_name (~> 0.5)
-    http-form_data (2.3.0)
     httpclient (2.9.0)
       mutex_m
     i18n (1.14.7)
@@ -295,17 +283,10 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     language_server-protocol (3.17.0.5)
-    libhoney (2.3.0)
-      addressable (~> 2.0)
-      excon
-      http (>= 2.0, < 6.0)
     lint_roller (1.1.0)
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
-    llhttp-ffi (0.5.0)
-      ffi-compiler (~> 1.0)
-      rake (~> 13.0)
     logger (1.7.0)
     loggregator_emitter (5.2.0)
       beefcake (~> 1.0.0)
@@ -656,7 +637,6 @@ DEPENDENCIES
   fog-openstack
   googleapis-common-protos (>= 1.8.0)
   hashdiff
-  honeycomb-beeline
   httpclient
   json-diff
   json-schema

config/initializers/honeycomb.rb

@@ -426,11 +426,6 @@ class ApiSchema < VCAP::Config
           optional(:cc_service_key_client_name) => String,
           optional(:cc_service_key_client_secret) => String,
 
-          optional(:honeycomb) => {
-            write_key: String,
-            dataset: String
-          },
-
           update_metric_tags_on_rename: bool,
           app_instance_stopping_state: bool,
 

lib/cloud_controller/config_schemas/api_schema.rb

@@ -27,7 +27,6 @@ def build(config, request_metrics, request_logs)
         use CloudFoundry::Middleware::VcapRequestId
         use CloudFoundry::Middleware::BelowMinCliWarning if config.get(:warn_if_below_min_cli_version)
         use CloudFoundry::Middleware::NewRelicCustomAttributes if config.get(:newrelic_enabled)
-        use Honeycomb::Rack::Middleware, client: Honeycomb.client if config.get(:honeycomb)
         use CloudFoundry::Middleware::SecurityContextSetter, configurer
         use CloudFoundry::Middleware::Zipkin
         use CloudFoundry::Middleware::RequestLogs, request_logs