protobuf: drop all unused versions

pkgs/development/libraries/protobuf/3.10.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.10.1";
-  sha256 = "1kbi2i1m5c7ss02ip8h0bdzvns4dgxx30a5c0iiph8g2ns02lr33";
-}

pkgs/development/libraries/protobuf/3.12.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.12.4";
-  sha256 = "1gzvnd0g5hmx5ln39w7p4z4qphw87ksgsa1fgbpvi8d0asmwab2p";
-}

pkgs/development/libraries/protobuf/3.13.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.13.0.1";
-  sha256 = "1r3hvbvjjww6pdk0mlg1lym7avxn8851xm8dg98bf4zq4vyrcw12";
-}

pkgs/development/libraries/protobuf/3.14.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.14.0";
-  sha256 = "1k4kkb78kdbz732wsph07v3zy3cz7l1msk2byrfvp0nb02sfl3a4";
-}

pkgs/development/libraries/protobuf/3.15.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.15.8";
-  sha256 = "1q3k8axhq6g8fqczmd6kbgzpdplrrgygppym4x1l99lzhplx9rqv";
-}

pkgs/development/libraries/protobuf/3.16.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.16.1";
-  sha256 = "sha256-eOwUyZtrmyh3HwLQ1kLnk+briaXQPrlUqtbFol/nGBo=";
-}

pkgs/development/libraries/protobuf/3.18.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.18.2";
-  sha256 = "sha256-IXxVTZOAKVMuGCJtD32rVQRBJRWUJMEK2d+fPEmgzRU=";
-}

pkgs/development/libraries/protobuf/3.6.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.6.1.3";
-  sha256 = "1spj0d4flx6h3phxx3sg9r00yv734hina3365avkcz9brnm089c1";
-}

pkgs/development/libraries/protobuf/3.9.nix

@@ -1,6 +0,0 @@
-{ callPackage, ... }:
-
-callPackage ./generic-v3.nix {
-  version = "3.9.2";
-  sha256 = "080zxa9w1pxp5y05aiwc0c8mlqkkh98wmid4l7m99cliphsd4qnn";
-}

pkgs/top-level/all-packages.nix

@@ -20127,19 +20127,10 @@ with pkgs;
   protobuf = protobuf3_19;
 
   protobuf3_19 = callPackage ../development/libraries/protobuf/3.19.nix { };
-  protobuf3_18 = callPackage ../development/libraries/protobuf/3.18.nix { };
   protobuf3_17 = callPackage ../development/libraries/protobuf/3.17.nix { };
-  protobuf3_16 = callPackage ../development/libraries/protobuf/3.16.nix { };
-  protobuf3_15 = callPackage ../development/libraries/protobuf/3.15.nix { };
-  protobuf3_14 = callPackage ../development/libraries/protobuf/3.14.nix { };
-  protobuf3_13 = callPackage ../development/libraries/protobuf/3.13.nix { };
-  protobuf3_12 = callPackage ../development/libraries/protobuf/3.12.nix { };
   protobuf3_11 = callPackage ../development/libraries/protobuf/3.11.nix { };
-  protobuf3_10 = callPackage ../development/libraries/protobuf/3.10.nix { };
-  protobuf3_9 = callPackage ../development/libraries/protobuf/3.9.nix { };
   protobuf3_8 = callPackage ../development/libraries/protobuf/3.8.nix { };
   protobuf3_7 = callPackage ../development/libraries/protobuf/3.7.nix { };
-  protobuf3_6 = callPackage ../development/libraries/protobuf/3.6.nix { };
 
   protobufc = callPackage ../development/libraries/protobufc/1.3.nix { };