Drop the benchmark dependency

It is trivial, don't have to take on a dependency for that.

Author: Earlopain

Gemfile.lock

@@ -2,7 +2,6 @@ PATH
   remote: .
   specs:
     tapioca (0.17.9)
-      benchmark
       bundler (>= 2.2.25)
       netrc (>= 0.11.0)
       parallel (>= 1.21.0)
@@ -110,7 +109,6 @@ GEM
     ast (2.4.3)
     base64 (0.3.0)
     bcrypt (3.1.20)
-    benchmark (0.5.0)
     bigdecimal (3.3.1)
     builder (3.3.0)
     cityhash (0.9.0)

lib/tapioca/helpers/rbi_files_helper.rb

@@ -11,7 +11,7 @@ def index_rbi(index, kind, file)
       return unless File.exist?(file)
 
       say("Loading #{kind} RBIs from #{file}... ")
-      time = Benchmark.realtime do
+      time = realtime do
         parse_and_index_files(index, [file], number_of_workers: 1)
       end
       say(" Done ", :green)
@@ -27,7 +27,7 @@ def index_rbis(index, kind, dir, number_of_workers:)
       else
         say("Loading #{kind} RBIs from #{dir}... ")
       end
-      time = Benchmark.realtime do
+      time = realtime do
         files = Dir.glob("#{dir}/**/*.rbi").sort
         parse_and_index_files(index, files, number_of_workers: number_of_workers)
       end
@@ -39,7 +39,7 @@ def index_rbis(index, kind, dir, number_of_workers:)
     def duplicated_nodes_from_index(index, shim_rbi_dir:, todo_rbi_file:)
       duplicates = {}
       say("Looking for duplicates... ")
-      time = Benchmark.realtime do
+      time = realtime do
         index.keys.each do |key|
           nodes = index[key]
           next unless shims_or_todos_have_duplicates?(nodes, shim_rbi_dir: shim_rbi_dir, todo_rbi_file: todo_rbi_file)
@@ -283,5 +283,12 @@ def update_gem_rbis_strictnesses(errors, gem_dir)
     def gem_name_from_rbi_path(path)
       T.must(File.basename(path, ".rbi").split("@").first)
     end
+
+    #: ?{ (?) -> untyped } -> (Integer | Float)
+    def realtime(&block)
+      start = Process.clock_gettime(Process::CLOCK_MONOTONIC)
+      yield
+      Process.clock_gettime(Process::CLOCK_MONOTONIC) - start
+    end
   end
 end

lib/tapioca/internal.rb

@@ -26,7 +26,6 @@
 require "tapioca/rbs/rewriter"
 # ^ Do not change the order of these requires
 
-require "benchmark"
 require "bundler"
 require "erb"
 require "etc"