buildGoPackage: remove platform.all from packages

pkgs/tools/security/2fa/default.nix

@@ -16,7 +16,6 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     homepage = "https://rsc.io/2fa";
     description = "Two-factor authentication on the command line";
-    platforms = platforms.all;
     maintainers = with maintainers; [ rvolosatovs ];
     license = licenses.bsd3;
   };

pkgs/tools/security/aws-okta/default.nix

@@ -25,7 +25,6 @@ buildGoPackage rec {
     description = "aws-vault like tool for Okta authentication";
     license = licenses.mit;
     maintainers = [maintainers.imalsogreg];
-    platforms = platforms.all;
     homepage = "https://github.com/segmentio/aws-okta";
     downloadPage = "https://github.com/segmentio/aws-okta";
   };

pkgs/tools/security/certstrap/default.nix

@@ -16,7 +16,6 @@ buildGoPackage rec {
   meta = with stdenv.lib; {
     inherit (src.meta) homepage;
     description = "Tools to bootstrap CAs, certificate requests, and signed certificates";
-    platforms = platforms.all;
     license = licenses.asl20;
     maintainers = with maintainers; [ volth ];
   };

pkgs/tools/security/hologram/default.nix

@@ -23,7 +23,6 @@ buildGoPackage rec {
     homepage = "https://github.com/AdRoll/hologram/";
     description = "Easy, painless AWS credentials on developer laptops.";
     maintainers = with maintainers; [ nand0p ];
-    platforms = platforms.all;
     license = licenses.asl20;
   };
 }