remove TRAVIS check in test source

Author: m6w6

ext/standard/tests/file/disk_free_space_basic.phpt

@@ -37,7 +37,7 @@ echo "\n Free Space after writing to a file\n";
 $space2 =  disk_free_space($file_path.$dir); 
 var_dump( $space2 ); 
 
-if(getenv('TRAVIS') === 'true' || $space1 > $space2 )
+if($space1 > $space2 )
   echo "\n Free Space Value Is Correct\n";
 else
   echo "\n Free Space Value Is Incorrect\n";