Remove deprecated exec/which exposure from Facter::Util::Resolution

acceptance/tests/custom_facts/execution_execute_sets_status_env_variable.rb

@@ -13,7 +13,7 @@
     content = <<-EOM
     Facter.add(:foo) do
       setcode do
-         Facter::Util::Resolution.exec("#{command}")
+         Facter::Core::Execution.execute("#{command}", on_fail: nil)
          "#{command} exited with code: %{status}" % {status: $?.exitstatus}
       end
     end

lib/facter/custom_facts/core/execution.rb

@@ -87,19 +87,6 @@ def with_env(values, &block)
         @@impl.with_env(values, &block)
       end
 
-      # Try to execute a command and return the output.
-      #
-      # @param command [String] Command to run
-      #
-      # @return [String/nil] Output of the program, or nil if the command does
-      #   not exist or could not be executed.
-      #
-      # @deprecated Use #{execute} instead
-      # @api public
-      def exec(command)
-        @@impl.execute(command, on_fail: nil)
-      end
-
       # Execute a command and return the output of that program.
       #
       # @param command [String] Command to run

lib/facter/custom_facts/util/resolution.rb

@@ -23,15 +23,6 @@ class Resolution
       extend Facter::Core::Execution
 
       class << self
-        # Expose command execution methods that were extracted into
-        # Facter::Core::Execution from Facter::Util::Resolution in Facter 2.0.0 for
-        # compatibility.
-        #
-        # @deprecated
-        #
-        # @api public
-        public :which, :exec
-
         # @api private
         public :with_env
       end

spec/custom_facts/core/execution_spec.rb

@@ -36,11 +36,6 @@
     execution.expand_command('waffles')
   end
 
-  it 'delegates #exec to #execute' do
-    expect(impl).to receive(:execute).with('waffles', { on_fail: nil })
-    execution.exec('waffles')
-  end
-
   it 'delegates #execute to the implementation' do
     expect(impl).to receive(:execute).with('waffles', {})
     execution.execute('waffles')