[12] RFR: JDK-8215231: Remove the redundant file readAsText.html

[Murali Billa]

Hi Kevin,

Please review the simple fix.

JBS: https://bugs.openjdk.java.net/browse/JDK-8215231
Webrev: http://cr.openjdk.java.net/~mbilla/8215231/webrev.01/

Thanks,
Murali