Changed Cucumber tags according to the convention

* Replaced @phantomjs-bug with browser specific tags (@firefox
@internet_explorer_10 @phantomjs).
* Replaced @custom-browser tag with @clean tag.
* Deleted cucumber.yml file since it is no longer used.
* Replaced old (no longer implemented) step names with new ones

The convention:

https://www.mediawiki.org/wiki/Manual:Coding_conventions/Selenium#Requir
ed_tags

Paired with: Kartik Mistry
Bug: 60335
Bug: 62477

Change-Id: I54f9ccbaaeb843293fbc1608d53f0e12b6d74cbe

tests/browser/features/ime.feature

@@ -1,3 +1,4 @@
+@firefox @phantomjs
 Feature: Input method engine
 
 User is able to select among different input methods via a menu which is
@@ -5,7 +6,7 @@ activated by the input method indicator. User can type with selected input
 method in different input fields and temporarily activate and deactivate the
 input method.
 
-  @commons.wikimedia.beta.wmflabs.org
+  @clean @commons.wikimedia.beta.wmflabs.org @internet_explorer_10
   Scenario: Input method indicator is shown
 
   The input method indicator is shown when input field gets a focus.
@@ -14,7 +15,7 @@ input method.
     When I click on an input box
     Then I should see the input method indicator
 
-  @commons.wikimedia.beta.wmflabs.org @needs-custom-setup
+  @commons.wikimedia.beta.wmflabs.org @internet_explorer_10
   Scenario: Input method menu
 
   Input method menu is shown when user clicks the input method indicator.
@@ -26,7 +27,7 @@ input method.
       And I should see a list of available input methods
       And I should see a list of suggested languages
 
-  @needs-custom-setup
+  @internet_explorer_10
   Scenario: Unsupported input language
 
   User visits a wiki with content language that does not have have an input
@@ -36,7 +37,7 @@ input method.
     When I open the input method menu
     Then I should see input methods for Kotava
 
-  @needs-custom-setup @commons.wikimedia.beta.wmflabs.org
+  @commons.wikimedia.beta.wmflabs.org
   Scenario: Sticky input methods
 
   Chosen input method selection persists across page loads.
@@ -53,7 +54,7 @@ input method.
     Then I should see the input method indicator
       And in it there must be an element with Malayalam text
 
-  @commons.wikimedia.beta.wmflabs.org
+  @clean @commons.wikimedia.beta.wmflabs.org @internet_explorer_10
   Scenario Outline: Input method menu is completely visible
     Given I visit a random page with <skin> skin and <language> as the interface language
     When I open the input method menu