diff --git a/shared/editor/extensions/DateTime.ts b/shared/editor/extensions/DateTime.ts
index 0e4f8919d9..51b84d42a5 100644
--- a/shared/editor/extensions/DateTime.ts
+++ b/shared/editor/extensions/DateTime.ts
@@ -1,4 +1,3 @@
-import { InputRule } from "prosemirror-inputrules";
 import { Schema } from "prosemirror-model";
 import { Command } from "prosemirror-state";
 import {
@@ -7,7 +6,6 @@ import {
   getCurrentTimeAsString,
 } from "../../utils/date";
 import Extension from "../lib/Extension";
-import { EventType } from "../types";
 
 /**
  * An editor extension that adds commands to insert the current date and time.
@@ -17,30 +15,6 @@ export default class DateTime extends Extension {
     return "date_time";
   }
 
-  inputRules() {
-    return [
-      // Note: There is a space at the end of the pattern here otherwise the
-      // /datetime rule can never be matched.
-      // these extra input patterns are needed until the block menu matches
-      // in places other than the start of a line
-      new InputRule(/\/date\s$/, ({ tr }, _match, start, end) => {
-        tr.delete(start, end).insertText(getCurrentDateAsString() + " ");
-        this.editor.events.emit(EventType.SuggestionsMenuClose);
-        return tr;
-      }),
-      new InputRule(/\/time\s$/, ({ tr }, _match, start, end) => {
-        tr.delete(start, end).insertText(getCurrentTimeAsString() + " ");
-        this.editor.events.emit(EventType.SuggestionsMenuClose);
-        return tr;
-      }),
-      new InputRule(/\/datetime\s$/, ({ tr }, _match, start, end) => {
-        tr.delete(start, end).insertText(`${getCurrentDateTimeAsString()} `);
-        this.editor.events.emit(EventType.SuggestionsMenuClose);
-        return tr;
-      }),
-    ];
-  }
-
   commands(_options: { schema: Schema }) {
     return {
       date: (): Command => (state, dispatch) => {
diff --git a/shared/editor/types/index.ts b/shared/editor/types/index.ts
index 55f96027e4..7267ab448e 100644
--- a/shared/editor/types/index.ts
+++ b/shared/editor/types/index.ts
@@ -8,8 +8,6 @@ import { Primitive } from "utility-types";
 export type PlainTextSerializer = (node: ProsemirrorNode) => string;
 
 export enum EventType {
-  SuggestionsMenuOpen = "suggestionMenuOpen",
-  SuggestionsMenuClose = "suggestionMenuClose",
   LinkToolbarOpen = "linkMenuOpen",
 }