Remove OS changes

lib/gitlab/ci/trace/chunked_file/chunk_store/object_storage.rb

-module Gitlab
-  module Ci
-    class Trace
-      module ChunkedFile
-        module ChunkStore
-          class ObjectStorage < Base
-            class << self
-              def open(job_id, chunk_index, **params)
-                raise ArgumentError unless job_id && chunk_index
-
-                relative_path = relative_path(job_id, chunk_index)
-                store = self.new(relative_path, params)
-
-                yield store
-              ensure
-                store&.close
-              end
-
-              def exist?(job_id, chunk_index)
-                raise NotImplementedError
-              end
-
-              def chunks_count(job_id)
-                raise NotImplementedError
-              end
-
-              def relative_path(job_id, chunk_index)
-                "#{job_id}/#{chunk_index}.chunk"
-              end
-            end
-
-            FailedToGetChunkError = Class.new(StandardError)
-
-            attr_reader :relative_path
-
-            def initialize(relative_path, **params)
-              super
-
-              @relative_path = relative_path
-            end
-
-            def close
-              @relative_path = nil
-            end
-
-            ## TODO: Carrierwave::Fog integration
-            def get
-              response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http|
-                request = Net::HTTP::Get.new(uri)
-                request.set_range(chunk_start, buffer_size)
-                http.request(request)
-              end
-
-              raise FailedToGetChunkError unless response.code == '200' || response.code == '206'
-
-              response.body.force_encoding(Encoding::BINARY)
-            end
-
-            def size
-              raise NotImplementedError
-            end
-
-            def write!(data)
-              raise NotImplementedError, 'Partial write is not supported' unless buffer_size == data.length
-              raise NotImplementedError
-            end
-
-            def append!(data)
-              raise NotImplementedError
-            end
-
-            def truncate!(offset)
-              raise NotImplementedError
-            end
-
-            def delete!
-              raise NotImplementedError
-            end
-          end
-        end
-      end
-    end
-  end
-end

lib/gitlab/ci/trace/chunked_file/http_io.rb

-module Gitlab
-  module Ci
-    class Trace
-      module ChunkedFile
-        class HttpIO < ChunkedIO
-          BUFFER_SIZE = 128.kilobytes
-
-          InvalidURLError = Class.new(StandardError)
-
-          attr_reader :uri
-
-          def initialize(job_id, url, size, mode)
-            raise InvalidURLError unless ::Gitlab::UrlSanitizer.valid?(url)
-
-            @uri = URI(url)
-
-            super(job_id, size, mode)
-          end
-
-          def write(data)
-            raise NotImplementedError
-          end
-
-          def truncate(offset)
-            raise NotImplementedError
-          end
-
-          def flush
-            raise NotImplementedError
-          end
-
-          private
-
-          def chunk_store
-            ChunkStores::ObjectStorage
-          end
-
-          def params_for_store
-            super.merge( { uri: uri } )
-          end
-        end
-      end
-    end
-  end
-end