website: Remove gem5 Workshop submission info

Submissions are now closed and we have our schedule set.

Change-Id: I9232481f24869bff8b028a8775e409067b3652fc
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/59890
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: Jason Lowe-Power <power.jg@gmail.com>
diff --git a/_pages/events/isca-2022.md b/_pages/events/isca-2022.md
index 4a4f444..ed777e5 100644
--- a/_pages/events/isca-2022.md
+++ b/_pages/events/isca-2022.md
@@ -17,8 +17,8 @@
 
 ## Key Dates
 
-* Workshop presentation proposal deadline: **April 26th 2022** (Presentation abstracts can be submitted [here](https://forms.gle/VZxXsWBniUPGBQdw5))
-* Workshop acceptance notifications: **May 9th 2022**
+* ~~Workshop presentation proposal deadline: **April 26th 2022** (Presentation abstracts can be submitted [here](https://forms.gle/VZxXsWBniUPGBQdw5))~~
+* ~~Workshop acceptance notifications: **May 9th 2022**~~
 * ISCA Conference: **June 18th to June 22th 2022**
 * gem5 Tutorial: **June 18th 2022 (Morning Session)**
 * gem5 Users' Workshop: **June 18th 2022 (Afternoon Session)**
@@ -63,19 +63,6 @@
 This will be followed by a series of 15 minutes presentations.
 These presentations are an opportunity for users of gem5 to present gem5-related work and foster discussion.
 
-Presentations are solicited on a broad ranges of topics relating to gem5, including (but not limited to):
-
-* New gem5 features and models
-* Improved models.
-* Validation against real hardware.
-* Software engineering related to gem5.
-* Experiences using gem5.
-* Tools, visualizations, data analysis tools, etc.
-
-If you wish to present at this year's gem5 User's workshop please provide a presentation proposal (a 1 page PDF) here: <https://forms.gle/VZxXsWBniUPGBQdw5>. **Note: This is an in-person event. The presenter must attend the workshop**.
-
-The deadline for submitting a presentation proposal is **April 26th** with acceptance notifications sent out by **May 9th**.
-
 ### Schedule
 
 |Time | Presentation | Presenter |