Remove duplicate AcquireThreadToken() in fragment executor.
Remove duplicate AcquireThreadToken() in fragment executor.

Change-Id: I8ca0b076d2629f590c9e195f783c2939a22f921e
Reviewed-on: http://gerrit.ent.cloudera.com:8080/712
Reviewed-by: Alex Behm <fe1626037acfc2dc542d2aa723a6d14f2464a20c@cloudera.com>
Tested-by: Alex Behm <fe1626037acfc2dc542d2aa723a6d14f2464a20c@cloudera.com>

kapilrastogi/Impala,XiaominZhang/Impala,gistic/PublicSpatialImpala,AtScaleInc/Impala,theyaa/Impala,henryr/Impala,grundprinzip/Impala,gerashegalov/Impala,rampage644/impala-cut,cchanning/Impala,placrosse/ImpalaToGo,cloudera/recordservice,XiaominZhang/Impala,cgvarela/Impala,caseyching/Impala,placrosse/ImpalaToGo,gerashegalov/Impala,ibmsoe/ImpalaPPC,ImpalaToGo/ImpalaToGo,lirui-intel/Impala,tempbottle/Impala,bratatidas9/Impala-1,andybab/Impala,caseyching/Impala,henryr/Impala,cloudera/recordservice,XiaominZhang/Impala,mapr/impala,ibmsoe/ImpalaPPC,ibmsoe/ImpalaPPC,rdblue/Impala,theyaa/Impala,XiaominZhang/Impala,grundprinzip/Impala,ImpalaToGo/ImpalaToGo,cgvarela/Impala,mapr/impala,bratatidas9/Impala-1,cchanning/Impala,bratatidas9/Impala-1,gerashegalov/Impala,lirui-intel/Impala,kapilrastogi/Impala,ibmsoe/ImpalaPPC,kapilrastogi/Impala,placrosse/ImpalaToGo,cchanning/Impala,mapr/impala,scalingdata/Impala,gistic/PublicSpatialImpala,mapr/impala,scalingdata/Impala,brightchen/Impala,lnliuxing/Impala,cchanning/Impala,tempbottle/Impala,gistic/PublicSpatialImpala,lirui-intel/Impala,theyaa/Impala,kapilrastogi/Impala,grundprinzip/Impala,caseyching/Impala,theyaa/Impala,tempbottle/Impala,tempbottle/Impala,cloudera/recordservice,theyaa/Impala,bratatidas9/Impala-1,cgvarela/Impala,lirui-intel/Impala,rdblue/Impala,henryr/Impala,kapilrastogi/Impala,cloudera/recordservice,andybab/Impala,gerashegalov/Impala,rdblue/Impala,lirui-intel/Impala,gerashegalov/Impala,rdblue/Impala,caseyching/Impala,cloudera/recordservice,XiaominZhang/Impala,brightchen/Impala,bratatidas9/Impala-1,lnliuxing/Impala,henryr/Impala,AtScaleInc/Impala,ImpalaToGo/ImpalaToGo,rampage644/impala-cut,grundprinzip/Impala,bowlofstew/Impala,theyaa/Impala,ibmsoe/ImpalaPPC,lnliuxing/Impala,ImpalaToGo/ImpalaToGo,XiaominZhang/Impala,brightchen/Impala,rampage644/impala-cut,gistic/PublicSpatialImpala,AtScaleInc/Impala,ibmsoe/ImpalaPPC,placrosse/ImpalaToGo,gerashegalov/Impala,lnliuxing/Impala,cchanning/Impala,ibmsoe/ImpalaPPC,lnliuxing/Impala,cgvarela/Impala,gistic/PublicSpatialImpala,brightchen/Impala,XiaominZhang/Impala,henryr/Impala,bowlofstew/Impala,lnliuxing/Impala,andybab/Impala,cloudera/recordservice,gistic/PublicSpatialImpala,AtScaleInc/Impala,grundprinzip/Impala,grundprinzip/Impala,scalingdata/Impala,andybab/Impala,brightchen/Impala,cchanning/Impala,rampage644/impala-cut,bowlofstew/Impala,brightchen/Impala,rdblue/Impala,ImpalaToGo/ImpalaToGo,AtScaleInc/Impala,cgvarela/Impala,lirui-intel/Impala,lirui-intel/Impala,cgvarela/Impala,placrosse/ImpalaToGo,tempbottle/Impala,bowlofstew/Impala,rampage644/impala-cut,caseyching/Impala,scalingdata/Impala,bowlofstew/Impala,tempbottle/Impala,placrosse/ImpalaToGo,caseyching/Impala,caseyching/Impala,bowlofstew/Impala,rdblue/Impala,kapilrastogi/Impala,bratatidas9/Impala-1,brightchen/Impala,andybab/Impala,ImpalaToGo/ImpalaToGo,scalingdata/Impala,rdblue/Impala,rampage644/impala-cut,cchanning/Impala,AtScaleInc/Impala,scalingdata/Impala,andybab/Impala,bowlofstew/Impala,mapr/impala,henryr/Impala,kapilrastogi/Impala,cgvarela/Impala,cloudera/recordservice,bratatidas9/Impala-1,tempbottle/Impala,theyaa/Impala,gerashegalov/Impala,lnliuxing/Impala