minor #28114 [travis] merge "same Symfony version" jobs in one (nicol…

…as-grekas)

This PR was merged into the 2.8 branch.

Discussion
----------

[travis] merge "same Symfony version" jobs in one

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | no
| New feature?  |
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Allowing to consume fewer jobs and save the 1 to 2 minutes bootstrap time of workers.

Commits
-------

9857ca07aa [travis] merge "same Symfony version" jobs in one

Tests/ProcessTest.php

@@ -439,9 +439,6 @@ public function testExitCodeCommandFailed()
         $this->assertGreaterThan(0, $process->getExitCode());
     }
 
-    /**
-     * @group tty
-     */
     public function testTTYCommand()
     {
         if ('\\' === DIRECTORY_SEPARATOR) {
@@ -457,9 +454,6 @@ public function testTTYCommand()
         $this->assertSame(Process::STATUS_TERMINATED, $process->getStatus());
     }
 
-    /**
-     * @group tty
-     */
     public function testTTYCommandExitCode()
     {
         if ('\\' === DIRECTORY_SEPARATOR) {