Remove get-device-isa

The use of get-device-isa was removed by below patch.
  https://android-review.googlesource.com/c/platform/art/+/2320206

This patch just simply removes the unused scripts.

Change-Id: Ia632f4f701100eab1db3003790337ec3891d8f3d
diff --git a/test/utils/get-device-isa b/test/utils/get-device-isa
deleted file mode 100755
index 5f9c2a4..0000000
--- a/test/utils/get-device-isa
+++ /dev/null
@@ -1,77 +0,0 @@
-#! /bin/bash
-#
-# Copyright 2019 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-usage() {
-  cat >&2 <<EOF
-Determine and print the 32- or 64-bit architecture of a device.
-
-Usage:
-  $0 --32    Select the 32-bit architecture
-  $0 --64    Select the 64-bit architecture
-EOF
-  exit 1
-}
-
-check_32bit() {
-  if ! adb shell test -e /system/bin/linker; then
-    echo >&2 "Device does not have 32-bit support"
-    exit 1
-  fi
-}
-
-if [[ $# -ne 1 ]]; then
-  usage
-fi
-
-uname_m="$(adb shell uname -m)"
-
-case "$1" in
-  (--32)
-    case $uname_m in
-      (armv*)
-        echo arm
-        ;;
-      (i?86)
-        echo x86
-        ;;
-      (aarch64)
-        check_32bit
-        echo arm
-        ;;
-      (x86_64)
-        check_32bit
-        echo x86
-        ;;
-      (*)
-        echo >&2 "Unknown ISA: $uname_m"
-        exit 1
-    esac
-    ;;
-  (--64)
-    case $uname_m in
-      (aarch64)
-        echo arm64
-        ;;
-      (x86_64)
-        echo x86_64
-        ;;
-      (*)
-        echo >&2 "Unknown ISA: $uname_m"
-        exit 1
-    esac
-    ;;
-  (*) usage;;
-esac