Try fix build error

scripts/full-build.sh

@@ -1,6 +1,3 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
 # This script will build the main English website as well as the website for
 # other languages inside the `po` directory.
 

scripts/new-language.sh

@@ -1,6 +1,3 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
 # Usage: new-language.sh <2ish character identifier>
 
 lang=${1:?"Usage: $0 <language identifier>"}

scripts/single-build.sh

@@ -1,6 +1,3 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
 # Usage: single-build.sh <book-lang> <dest-dir>
 
 book_lang=${1:?"Usage: $0 <book-lang> <dest-dir>"}

scripts/update-language.sh

@@ -1,6 +1,3 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
 # Usage: update-language.sh <2ish character identifier>
 
 lang=${1:?"Usage: $0 <language identifier>"}

scripts/update-msg-pot.sh

@@ -1,5 +1,2 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-
 MDBOOK_OUTPUT='{"xgettext": {}}' mdbook build -d po
 echo "Updated po/messages.pot file"