Revert "Update dependency dompurify to v1.0.9" (ampproject#237)

* Revert "Update dependency esm to v3.1.0 (ampproject#233)"

This reverts commit 679e687.

* Revert "Allow delegating of script fetching to caller (ampproject#234)"

This reverts commit 1949888.

* Revert "Update dependency typescript to v3.2.4 (ampproject#235)"

This reverts commit c691f0a.

* Revert "Update dependency rollup-plugin-babel to v4.3.1 (ampproject#236)"

This reverts commit 6e63177.

* Revert "Update dependency bundlesize to v0.17.1 (ampproject#230)"

This reverts commit 21dc0ff.

* Revert "Update dependency dompurify to v1.0.9 (ampproject#229)"

This reverts commit 88dfd12.

package.json

@@ -42,7 +42,7 @@
     "release": "npm-run-all --serial release:tag release:git release:gren release:changelog release:git"
   },
   "dependencies": {
-    "dompurify": "1.0.9"
+    "dompurify": "1.0.8"
   },
   "devDependencies": {
     "@ampproject/rollup-plugin-closure-compiler": "0.8.5",