TS-4789: Remove READ_WHILE_WRITER build condition.
TS-4789: Remove READ_WHILE_WRITER build condition.

PSUdaemon/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,duke8253/trafficserver,reveller/trafficserver,rahmalik/trafficserver,rpufky/trafficserver,bryancall/trafficserver,chenglongwei/trafficserver,chenglongwei/trafficserver,persiaAziz/trafficserver,rahmalik/trafficserver,PSUdaemon/trafficserver,bryancall/trafficserver,rpufky/trafficserver,clearswift/trafficserver,rpufky/trafficserver,rahmalik/trafficserver,pbchou/trafficserver,bryancall/trafficserver,chenglongwei/trafficserver,taoyunxing/trafficserver,SolidWallOfCode/trafficserver,reveller/trafficserver,duke8253/trafficserver,davidbz/trafficserver,pbchou/trafficserver,persiaAziz/trafficserver,reveller/trafficserver,persiaAziz/trafficserver,persiaAziz/trafficserver,SolidWallOfCode/trafficserver,persiaAziz/trafficserver,PSUdaemon/trafficserver,dyrock/trafficserver,davidbz/trafficserver,clearswift/trafficserver,davidbz/trafficserver,davidbz/trafficserver,dyrock/trafficserver,persiaAziz/trafficserver,rahmalik/trafficserver,rahmalik/trafficserver,rahmalik/trafficserver,duke8253/trafficserver,PSUdaemon/trafficserver,SolidWallOfCode/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,chitianhao/trafficserver,rpufky/trafficserver,vmamidi/trafficserver,PSUdaemon/trafficserver,chenglongwei/trafficserver,duke8253/trafficserver,pbchou/trafficserver,rpufky/trafficserver,taoyunxing/trafficserver,reveller/trafficserver,clearswift/trafficserver,persiaAziz/trafficserver,reveller/trafficserver,rpufky/trafficserver,taoyunxing/trafficserver,clearswift/trafficserver,dyrock/trafficserver,clearswift/trafficserver,dyrock/trafficserver,taoyunxing/trafficserver,PSUdaemon/trafficserver,PSUdaemon/trafficserver,PSUdaemon/trafficserver,reveller/trafficserver,davidbz/trafficserver,reveller/trafficserver,clearswift/trafficserver,chenglongwei/trafficserver,chenglongwei/trafficserver,vmamidi/trafficserver,chitianhao/trafficserver,SolidWallOfCode/trafficserver,chitianhao/trafficserver,taoyunxing/trafficserver,taoyunxing/trafficserver,chenglongwei/trafficserver,rahmalik/trafficserver,rahmalik/trafficserver,vmamidi/trafficserver,dyrock/trafficserver,rpufky/trafficserver,taoyunxing/trafficserver,pbchou/trafficserver,rpufky/trafficserver,taoyunxing/trafficserver,chitianhao/trafficserver,dyrock/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,rpufky/trafficserver,pbchou/trafficserver,SolidWallOfCode/trafficserver,reveller/trafficserver,pbchou/trafficserver,bryancall/trafficserver,vmamidi/trafficserver,clearswift/trafficserver,vmamidi/trafficserver,clearswift/trafficserver,taoyunxing/trafficserver,PSUdaemon/trafficserver,duke8253/trafficserver,reveller/trafficserver,rahmalik/trafficserver,persiaAziz/trafficserver,clearswift/trafficserver,davidbz/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver,duke8253/trafficserver,chenglongwei/trafficserver,chitianhao/trafficserver,chitianhao/trafficserver