Destroy surplus columns

Summary:
Ref T1191. This destroys surplus columns:

  - Pholio's transaction comments have a `mockID` column, but this is not used. The `imageID` column is used instead.
  - Phragment has an unused `description` column.
  - Releeph has an unused `summary` column.

Test Plan:
  - Grepped for usage of these columns.
  - Checked that these exist in production, too.
  - Ran upgrades.
  - Added Pholio inline comments.
  - Saw fewer warnings.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley, hach-que

Maniphest Tasks: T1191

Differential Revision: https://secure.phabricator.com/D10591

resources/sql/autopatches/20140927.schema.02.pholio1.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_pholio.pholio_transaction_comment
+  DROP KEY `key_draft`;

resources/sql/autopatches/20140927.schema.03.pholio2.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_pholio.pholio_transaction_comment
+  ADD UNIQUE KEY `key_draft` (authorPHID, imageID, transactionPHID);

resources/sql/autopatches/20140927.schema.04.pholio3.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_pholio.pholio_transaction_comment
+  DROP COLUMN mockID;

resources/sql/autopatches/20140927.schema.05.phragment1.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_phragment.phragment_snapshot
+  DROP COLUMN description;

resources/sql/autopatches/20140927.schema.06.releeph1.sql

@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_releeph.releeph_request
+  DROP COLUMN summary;

src/applications/releeph/storage/ReleephRequest.php

@@ -154,8 +154,7 @@ final class ReleephRequest extends ReleephDAO
         'userIntents' => self::SERIALIZATION_JSON,
       ),
       self::CONFIG_COLUMN_SCHEMA => array(
-        'summary' => 'text',
-        'requstCommitPHID' => 'phid?',
+        'requestCommitPHID' => 'phid?',
         'commitIdentifier' => 'text40',
         'pickStatus' => 'uint32',
         'inBranch' => 'bool',