message: Remove gulp grep tasks (obsolete with frontend/backend package split)
diff: /*--------------------------------------------------------------------------------------+
  | $Copyright: (c) 2017 Bentley Systems, Incorporated. All rights reserved. $
  +--------------------------------------------------------------------------------------*/
  -
  const gulp = require("gulp");
  const bentleyTools = require("@bentley/bentleyjs-tools");
  -const grepFail = require("gulp-grep-fail");
  // initialize and add the default Bentley gulp tasks
  bentleyTools.init(gulp);
  -
  -// defines "gulp grep" task
  -gulp.task("grep", ["grepCommon", "grepFrontend", "grepMiddle", "grepBackend"], () => {
  -});
  -
  -gulp.task("grepCommon", () => {
  - return gulp.src("source/common/**/*.ts").pipe(grepFail(["/frontend/", "/middle/", "/backend/"]));
  -});
  -
  -gulp.task("grepFrontend", () => {
  - return gulp.src("source/frontend/**/*.ts").pipe(grepFail(["/backend/"]));
  -});
  -
  -gulp.task("grepMiddle", () => {
  - return gulp.src("source/middle/**/*.ts").pipe(grepFail(["/frontend/"]));
  -});
  -
  -gulp.task("grepBackend", () => {
  - return gulp.src("source/backend/**/*.ts").pipe(grepFail(["/frontend/"]));
  -});
  