LibWeb: Remove outdated layout/text test scripts

These are superseded by headless-browser running these tests in a single
process, and aren't used by CI anymore. It's a bit confusing having them
still around so let's be rid of them.

Tests/LibWeb/Text/text_test.sh

@@ -1,28 +0,0 @@
-#!/usr/bin/env bash
-
-set -eo pipefail
-
-SCRIPT_DIR="$(cd -P -- "$(dirname -- "${0}")" && pwd -P)"
-LADYBIRD_BUILD_DIR="${1}"
-
-if [[ -z "${LADYBIRD_BUILD_DIR}" ]] ; then
-    echo "Provide path to the Ladybird build directory"
-    exit 1
-fi
-
-BROWSER_BINARY="headless-browser"
-
-find "${SCRIPT_DIR}/input/" -type f -name "*.html" -print0 | while IFS= read -r -d '' input_html_path; do
-    input_html_file=${input_html_path/${SCRIPT_DIR}"/input/"/}
-    input_html_file=${input_html_file/".html"/}
-
-    output_text_dump=$(cd "${LADYBIRD_BUILD_DIR}"; timeout 300s "../bin/${BROWSER_BINARY}" --dump-text "${input_html_path}")
-    expected_text_dump_path="${SCRIPT_DIR}/expected/${input_html_file}.txt"
-
-    if cmp <(echo "${output_text_dump}") "${expected_text_dump_path}"; then
-        echo "${input_html_file} PASSED"
-    else
-        echo "${input_html_file} FAILED"
-        diff -u "${expected_text_dump_path}" <(echo "${output_text_dump}")
-    fi
-done