Robert_Charlton - 1:35 am on Sep 8, 2012 (gmt 0)
remove them from robots.txt
The issues with X-Robots noindex are exactly parallel to the issues with the meta robots noindex currently being discussed in detail in this thread...
Pages are indexed even after blocking in robots.txt
Yes, you must remove the pages from robots.txt. If you do that and use X-Robots noindex, you do not need to use the WMT removal tool.