Remove empty headers from 616

Author: mariannegoldin

draft/2025-09-10-this-week-in-rust.md

@@ -41,8 +41,6 @@ and just ask the editors to select the category.
 * [Crossing the streams: Project + Foundation](https://blog.rust-lang.org/inside-rust/2025/09/04/crossing-the-streams/)
 * [Rust compiler performance survey 2025 results](https://blog.rust-lang.org/2025/09/10/rust-compiler-performance-survey-2025-results/)
 
-### Foundation
-
 ### Newsletters
 * [This Month in Rust OSDev: August 2025](https://rust-osdev.com/this-month/2025-08/)
 
@@ -60,8 +58,6 @@ and just ask the editors to select the category.
 ### Rust Walkthroughs
 * [Axum Backend Series - Introduction](https://blog.0xshadow.dev/posts/backend-engineering-with-axum/axum-introduction/)
 
-### Research
-
 ### Miscellaneous
 * [🦀 RustConf Like No Other: a recap of RustConf 2025](https://weeklyrust.substack.com/p/rustconf-like-no-other)
 
@@ -111,9 +107,7 @@ Every week we highlight some tasks from the Rust community for you to pick and g
 
 Some of these tasks may also have mentors available, visit the task page for more information.
 
-<!-- CFPs go here, use this format: * [project name - title of issue](URL to issue) -->
-<!-- * [ - ]() -->
-<!-- or if none - *No Calls for participation were submitted this week.* -->
+*No Calls for participation were submitted this week.*
 
 If you are a Rust project owner and are looking for contributors, please submit tasks [here][guidelines] or through a [PR to TWiR](https://github.com/rust-lang/this-week-in-rust) or by reaching out on [X (formerly Twitter)](https://x.com/ThisWeekInRust) or [Mastodon](https://mastodon.social/@thisweekinrust)!
 
@@ -123,8 +117,7 @@ If you are a Rust project owner and are looking for contributors, please submit
 
 Are you a new or experienced speaker looking for a place to share something cool? This section highlights events that are being planned and are accepting submissions to join their event as a speaker.
 
-<!-- CFPs go here, use this format: * [**event name**](URL to CFP)| Date CFP closes in YYYY-MM-DD | city,state,country | Date of event in YYYY-MM-DD -->
-<!-- or if none - *No Calls for papers or presentations were submitted this week.* -->
+*No Calls for papers or presentations were submitted this week.*
 
 If you are an event organizer hoping to expand the reach of your event, please submit a link to the website through a [PR to TWiR](https://github.com/rust-lang/this-week-in-rust) or by reaching out on [X (formerly Twitter)](https://x.com/ThisWeekInRust) or [Mastodon](https://mastodon.social/@thisweekinrust)!