josh-proxy: Remove description of deprecated -n flag

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

Author: jsoref

josh-proxy/src/cli.rs

@@ -32,7 +32,7 @@ pub struct Args {
 
     #[arg(
         short,
-        help = "DEPRECATED - no effect! Number of concurrent upstream git fetch/push operations"
+        help = "DEPRECATED - no effect!"
     )]
     _n: Option<String>,
 

tests/proxy/shell.t

@@ -17,7 +17,7 @@
         --no-background
 
     -n <N>
-            DEPRECATED - no effect! Number of concurrent upstream git fetch/push operations
+            DEPRECATED - no effect!
         --port <PORT>
             [default: 8000]
     -c, --cache-duration <CACHE_DURATION>