remove httpPort

we can just use container IP instead of all this httpPort exporting magic.
this is also required for exposing httpPaths feature (we have to otherwise
have multiple httpPorts).

src/appdb.js

@@ -2,7 +2,6 @@
 
 exports = module.exports = {
     get: get,
-    getByHttpPort: getByHttpPort,
     getByContainerId: getByContainerId,
     add: add,
     exists: exists,
@@ -39,7 +38,7 @@ var assert = require('assert'),
     util = require('util');
 
 var APPS_FIELDS_PREFIXED = [ 'apps.id', 'apps.appStoreId', 'apps.installationState', 'apps.errorJson', 'apps.runState',
-    'apps.health', 'apps.containerId', 'apps.manifestJson', 'apps.httpPort', 'subdomains.subdomain AS location', 'subdomains.domain',
+    'apps.health', 'apps.containerId', 'apps.manifestJson', 'subdomains.subdomain AS location', 'subdomains.domain',
     'apps.accessRestrictionJson', 'apps.memoryLimit', 'apps.cpuShares',
     'apps.label', 'apps.tagsJson', 'apps.taskId', 'apps.reverseProxyConfigJson', 'apps.servicesConfigJson',
     'apps.sso', 'apps.debugModeJson', 'apps.enableBackup', 'apps.proxyAuth',
@@ -155,34 +154,6 @@ function get(id, callback) {
     });
 }
 
-function getByHttpPort(httpPort, callback) {
-    assert.strictEqual(typeof httpPort, 'number');
-    assert.strictEqual(typeof callback, 'function');
-
-    database.query('SELECT ' + APPS_FIELDS_PREFIXED + ','
-    + 'GROUP_CONCAT(CAST(appPortBindings.hostPort AS CHAR(6))) AS hostPorts, GROUP_CONCAT(appPortBindings.environmentVariable) AS environmentVariables, GROUP_CONCAT(appPortBindings.type) AS portTypes,'
-    + 'JSON_ARRAYAGG(appEnvVars.name) AS envNames, JSON_ARRAYAGG(appEnvVars.value) AS envValues,'
-    + 'JSON_ARRAYAGG(appMounts.volumeId) AS volumeIds, JSON_ARRAYAGG(appMounts.readOnly) AS volumeReadOnlys '
-        + ' FROM apps'
-        + '  LEFT OUTER JOIN appPortBindings ON apps.id = appPortBindings.appId'
-        + '  LEFT OUTER JOIN appEnvVars ON apps.id = appEnvVars.appId'
-        + '  LEFT OUTER JOIN subdomains ON apps.id = subdomains.appId AND subdomains.type = ?'
-        + '  LEFT OUTER JOIN appMounts ON apps.id = appMounts.appId'
-        + ' WHERE httpPort = ? GROUP BY apps.id', [ exports.SUBDOMAIN_TYPE_PRIMARY, httpPort ], function (error, result) {
-        if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error));
-        if (result.length === 0) return callback(new BoxError(BoxError.NOT_FOUND, 'App not found'));
-
-        database.query('SELECT ' + SUBDOMAIN_FIELDS + ' FROM subdomains WHERE appId = ? AND type = ?', [ result[0].id, exports.SUBDOMAIN_TYPE_REDIRECT ], function (error, alternateDomains) {
-            if (error) return callback(new BoxError(BoxError.DATABASE_ERROR, error));
-
-            result[0].alternateDomains = alternateDomains;
-            postProcess(result[0]);
-
-            callback(null, result[0]);
-        });
-    });
-}
-
 function getByContainerId(containerId, callback) {
     assert.strictEqual(typeof containerId, 'string');
     assert.strictEqual(typeof callback, 'function');