all-packages.nix: remove unused headers

pkgs/top-level/all-packages.nix

@@ -8865,8 +8865,6 @@ with pkgs;
   );
   agda = agdaPackages.agda;
 
-  ### DEVELOPMENT / LIBRARIES / BASH
-
   ### DEVELOPMENT / LIBRARIES / JAVA
 
   saxonb = saxonb_8_8;
@@ -9867,8 +9865,6 @@ with pkgs;
 
   zabbix = zabbix60;
 
-  ### SERVERS / GEOSPATIAL
-
   ### OS-SPECIFIC
 
   alfred = callPackage ../os-specific/linux/batman-adv/alfred.nix { };
@@ -13614,10 +13610,6 @@ with pkgs;
     libxc = pkgs.libxc_7;
   };
 
-  ### SCIENCE/GEOMETRY
-
-  ### SCIENCE/BENCHMARK
-
   ### SCIENCE/BIOLOGY
 
   cd-hit = callPackage ../applications/science/biology/cd-hit {
@@ -13764,8 +13756,6 @@ with pkgs;
     }
   );
 
-  ### SCIENCE/MEDICINE
-
   ### SCIENCE/PHYSICS
 
   mcfm = callPackage ../applications/science/physics/MCFM {
@@ -13778,8 +13768,6 @@ with pkgs;
 
   xflr5 = libsForQt5.callPackage ../applications/science/physics/xflr5 { };
 
-  ### SCIENCE/PROGRAMMING
-
   ### SCIENCE/LOGIC
 
   abella = callPackage ../applications/science/logic/abella {
@@ -13918,8 +13906,6 @@ with pkgs;
     inherit (ocaml-ng.ocamlPackages_4_14_unsafe_string) ocaml;
   };
 
-  ### SCIENCE / ENGINEERING
-
   ### SCIENCE / ELECTRONICS
 
   simulide_0_4_15 = callPackage ../by-name/si/simulide/package.nix { versionNum = "0.4.15"; };