Revert "Prevent ctrl-c in qemu from exiting vm - use ctrl-] instead"

scripts/run

@@ -266,11 +266,6 @@ if [ "$QEMU" == "1" ]; then
     else
         INSTALLED_ARGS="-kernel ${KERNEL} -initrd ${INITRD}"
     fi
-
-    # don't quit qemu using ctrl-c
-    stty intr ^]
-    stty susp ^]
-    stty quit ^]
     set -x
     exec qemu-system-${QEMUARCH} \
             ${DISPLAY_OPTS} \
@@ -300,10 +295,6 @@ elif [ "$BOOT_ISO" == "1" ] ||
             echo "----- $ISO_OPTS"
     fi
     set -x
-    # don't quit qemu using ctrl-c
-    stty intr ^]
-    stty susp ^]
-    stty quit ^]
     exec qemu-system-${QEMUARCH} \
             ${DISPLAY_OPTS} \
             ${CLOUD_CONFIG_DISK} \