Revert "Switch print/embed to async (#13104)" (#13210)

tests/integration/plugins/automatic/node_modules/@prettier/plugin-foo/index.js

@@ -16,12 +16,8 @@ module.exports = {
   },
   printers: {
     foo: {
-      async print(path) {
-        const { default: prettier } = await import(
-          "../../../../../../config/prettier-entry.js"
-        );
-        const { concat } = prettier.doc.builders;
-        return concat(["foo+", path.getValue().text]);
+      print(path) {
+        return ["foo+", path.getValue().text];
       },
     },
   },

tests/integration/plugins/automatic/node_modules/@user/prettier-plugin-foobar/index.js

@@ -16,12 +16,8 @@ module.exports = {
   },
   printers: {
     foobar: {
-      async print(path) {
-        const { default: prettier } = await import(
-          "../../../../../../config/prettier-entry.js"
-        );
-        const { concat } = prettier.doc.builders;
-        return concat(["foobar+", path.getValue().text]);
+      print(path) {
+        return ["foobar+", path.getValue().text];
       },
     },
   },

tests/integration/plugins/automatic/node_modules/prettier-plugin-bar/index.js

@@ -15,12 +15,8 @@ module.exports = {
   },
   printers: {
     bar: {
-      async print(path) {
-        const { default: prettier } = await import(
-          "../../../../../config/prettier-entry.js"
-        );
-        const { concat } = prettier.doc.builders;
-        return concat(["content from `prettier-plugin-bar` package + ", path.getValue().text]);
+      print(path) {
+        return ["content from `prettier-plugin-bar` package + ", path.getValue().text];
       },
     },
   },