Remove DifferentialFieldSelector

Summary: Ref T2222. Gets rid of DifferentialFieldSelector, favoring `differential.fields`.

Test Plan: `grep`

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2222

Differential Revision: https://secure.phabricator.com/D8472

Author: epriestley

conf/default.conf.php

@@ -794,8 +794,6 @@
     '/\.l?hs$/',
   ),
 
-  'differential.field-selector' => 'DifferentialDefaultFieldSelector',
-
   // Differential has a required "Test Plan" field by default. You can make it
   // optional by setting this to false. You can also completely remove it above,
   // if you prefer.

src/__phutil_library_map__.php

@@ -375,7 +375,6 @@
     'DifferentialDAO' => 'applications/differential/storage/DifferentialDAO.php',
     'DifferentialDateCreatedFieldSpecification' => 'applications/differential/field/specification/DifferentialDateCreatedFieldSpecification.php',
     'DifferentialDateModifiedFieldSpecification' => 'applications/differential/field/specification/DifferentialDateModifiedFieldSpecification.php',
-    'DifferentialDefaultFieldSelector' => 'applications/differential/field/selector/DifferentialDefaultFieldSelector.php',
     'DifferentialDependenciesField' => 'applications/differential/customfield/DifferentialDependenciesField.php',
     'DifferentialDependenciesFieldSpecification' => 'applications/differential/field/specification/DifferentialDependenciesFieldSpecification.php',
     'DifferentialDependsOnField' => 'applications/differential/customfield/DifferentialDependsOnField.php',
@@ -397,7 +396,6 @@
     'DifferentialExportPatchFieldSpecification' => 'applications/differential/field/specification/DifferentialExportPatchFieldSpecification.php',
     'DifferentialFieldDataNotAvailableException' => 'applications/differential/field/exception/DifferentialFieldDataNotAvailableException.php',
     'DifferentialFieldParseException' => 'applications/differential/field/exception/DifferentialFieldParseException.php',
-    'DifferentialFieldSelector' => 'applications/differential/field/selector/DifferentialFieldSelector.php',
     'DifferentialFieldSpecification' => 'applications/differential/field/specification/DifferentialFieldSpecification.php',
     'DifferentialFieldSpecificationIncompleteException' => 'applications/differential/field/exception/DifferentialFieldSpecificationIncompleteException.php',
     'DifferentialFieldValidationException' => 'applications/differential/field/exception/DifferentialFieldValidationException.php',
@@ -2941,7 +2939,6 @@
     'DifferentialDAO' => 'PhabricatorLiskDAO',
     'DifferentialDateCreatedFieldSpecification' => 'DifferentialFieldSpecification',
     'DifferentialDateModifiedFieldSpecification' => 'DifferentialFieldSpecification',
-    'DifferentialDefaultFieldSelector' => 'DifferentialFieldSelector',
     'DifferentialDependenciesField' => 'DifferentialCustomField',
     'DifferentialDependenciesFieldSpecification' => 'DifferentialFieldSpecification',
     'DifferentialDependsOnField' => 'DifferentialCustomField',

src/applications/config/check/PhabricatorSetupCheckExtraConfig.php

@@ -189,6 +189,7 @@ public static function getAncientConfig() {
         'Obsolete; use standard rendering events instead.'),
       'differential.show-host-field' => $differential_field_reason,
       'differential.show-test-plan-field' => $differential_field_reason,
+      'differential.field-selector' => $differential_field_reason,
     );
 
     return $ancient_config;

src/applications/differential/config/PhabricatorDifferentialConfigOptions.php

@@ -77,12 +77,6 @@ public function getOptions() {
           pht(
             "List of file regexps where whitespace is meaningful and should ".
             "not use 'ignore-all' by default")),
-      $this->newOption(
-        'differential.field-selector',
-        'class',
-        'DifferentialDefaultFieldSelector')
-        ->setBaseClass('DifferentialFieldSelector')
-        ->setDescription(pht('Field selector class')),
       $this->newOption('differential.require-test-plan-field', 'bool', true)
         ->setBoolOptions(
           array(