hg: code-tools/jcstress: Remove Counter.merge().

[aleksey.shipilev at oracle.com]

Changeset: 0ce1adc0b063
Author:    shade
Date:      2014-08-06 02:36 +0400
URL:       http://hg.openjdk.java.net/code-tools/jcstress/rev/0ce1adc0b063

Remove Counter.merge().

! jcstress-core/src/main/java/org/openjdk/jcstress/util/Counter.java
! jcstress-core/src/main/java/org/openjdk/jcstress/util/HashCounter.java
! jcstress-core/src/main/java/org/openjdk/jcstress/util/OpenAddressHashCounter.java