Change the remaining spots of code to use the new promise.reduce syntax

lib/dialects/sqlite/query-interface.js

@@ -32,10 +32,9 @@ var QueryInterface = module.exports = {
       var sql = self.QueryGenerator.removeColumnQuery(tableName, fields)
         , subQueries = sql.split(';').filter(function(q) { return q !== ''; });
 
-      subQueries.unshift(null);
       return Utils.Promise.reduce(subQueries, function(total, subQuery) {
         return self.sequelize.query(subQuery + ';', null, { raw: true});
-      });
+      }, null);
     });
   },
 
@@ -64,10 +63,9 @@ var QueryInterface = module.exports = {
       var sql = self.QueryGenerator.removeColumnQuery(tableName, fields)
         , subQueries = sql.split(';').filter(function(q) { return q !== ''; });
 
-      subQueries.unshift(null);
       return Utils.Promise.reduce(subQueries, function(total, subQuery) {
         return self.sequelize.query(subQuery + ';', null, { raw: true});
-      });
+      }, null);
     });
   },
 
@@ -96,10 +94,9 @@ var QueryInterface = module.exports = {
       var sql = self.QueryGenerator.renameColumnQuery(tableName, attrNameBefore, attrNameAfter, fields)
         , subQueries = sql.split(';').filter(function(q) { return q !== ''; });
 
-      subQueries.unshift(null);
       return Utils.Promise.reduce(subQueries, function(total, subQuery) {
         return self.sequelize.query(subQuery + ';', null, { raw: true});
-      });
+      }, null);
     });
   }
 };

lib/query-interface.js

@@ -192,13 +192,12 @@ module.exports = (function() {
     options = options || {};
 
     var dropAllTables = function(tableNames) {
-      tableNames.unshift(null);
       return Utils.Promise.reduce(tableNames, function(total, tableName) {
         // if tableName is not in the Array of tables names then dont drop it
         if (skip.indexOf(tableName) === -1) {
           return self.dropTable(tableName, { cascade: true });
         }
-      });
+      }, null);
     };
 
     var skip = options.skip || [];