Revert "Check if CI supports bash -e option."

This reverts commit ec357b7.

EXAMPLES/MATRIX_MARKET/arpackmm.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/bin/bash
 
 for eigPb in "--A As.mtx" "--nonSymPb --A An.mtx" "--nonSymPb --cpxPb --A Az.mtx"
 do

EXAMPLES/MATRIX_MARKET/issue215.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/bin/bash
 
 # Note: need to shift slightly as eigen value is zero.
 ./arpackmm --A issue215.mtx --mag LM --nbEV 1 --nbCV 4 --shiftReal 0.1

EXAMPLES/MATRIX_MARKET/issue401.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/bin/bash
 
 ./arpackmm --A issue401.mtx --mag LA --nbEV 1 --nbCV 5
 if [ "$?" -ne "0" ]; then exit 1; fi