pqmx: Remove semihosting.c patch

Ported upstream in slothy-optimizer/pqmx#92

Signed-off-by: Matthias J. Kannwischer <[email protected]>

Author: mkannwischer

nix/m55-an547-arm-none-eabi/default.nix

@@ -8,18 +8,17 @@
 
 stdenvNoCC.mkDerivation {
   pname = "mldsa-native-m55-an547";
-  version = "unstable-2025-09-17";
+  version = "main-2025-09-26";
 
 
   # Fetch platform files from pqmx (envs/m55-an547)
   src = fetchFromGitHub {
     owner = "slothy-optimizer";
     repo = "pqmx";
-    rev = "31d3237";
-    hash = "sha256-sL3OduAqe6nDmP+jzJ9hePy9GOc3Snw0zC60C5UvplM=";
+    rev = "b58247d9771c170d3f74dbd993fa7a24d48258a8";
+    hash = "sha256-APqxI5FjSDlPMc7/mT5MNjFb5TLWad179BRaoz3TP8g=";
   };
 
-  patches = [ ./semihosting.patch ];
   dontBuild = true;
 
   installPhase = ''