remove "set -x" in CHiME3 scripts

egs/chime3/s5/local/chime3_beamform.sh

@@ -35,7 +35,6 @@ export PATH=${PATH}:$BEAMFORMIT
 set -e
 set -u
 set -o pipefail
-#set -x
 
 mkdir -p $odir
 mkdir -p $wdir/log

egs/chime3/s5/local/run_dnn.sh

@@ -37,7 +37,6 @@ enhan_data=$2
 set -e
 set -u
 set -o pipefail
-set -x
 
 # check whether run_init is executed
 if [ ! -d data/lang ]; then

egs/chime3/s5/local/run_gmm.sh

@@ -37,7 +37,6 @@ enhan_data=$2
 set -e
 set -u
 set -o pipefail
-set -x
 
 # check whether run_init is executed
 if [ ! -d data/lang ]; then

egs/chime3/s5/local/run_init.sh

@@ -40,7 +40,6 @@ eval_flag=true # make it true when the evaluation data are released
 set -e
 set -u
 set -o pipefail
-set -x
 
 if [ $stage -le 0 ]; then
   # process for clean speech and making LMs etc. from original WSJ0

egs/chime3/s5/run.sh

@@ -20,7 +20,6 @@ stage=0 # resume training with --stage=N
 set -e
 set -u
 set -o pipefail
-set -x
 
 # You can execute run_init.sh only "once"
 # This creates LMs, basic task files, basic models,