buildGoPackage: remove Go deps file libs.json

After #16017 there were a lot
of comments saying that `nix` would be better than `JSON`
for Go packages dependency sets.
As said in https://github.com/NixOS/nixpkgs/pull/16017#issuecomment-229624046

    > Because of the content-addressable store, if two programs have the
    > same dependency it will already result in the same derivation in
    > the
    > store. Git also has compression in the pack files so it won't make
    > much difference to duplicate the dependencies on disk. And finally
    > most users will just use the binary builds so it won't make any
    > differences to them.

This PR removes `libs.json` file and puts all package dependencies in
theirs `deps.json`.

pkgs/tools/text/platinum-searcher/deps.json

@@ -1,16 +1,83 @@
 [
-  {
-    "include": "../../libs.json",
-    "packages": [
-      "github.com/BurntSushi/toml",
-      "github.com/monochromegane/conflag",
-      "github.com/monochromegane/go-home",
-      "github.com/monochromegane/terminal",
-      "github.com/monochromegane/go-gitignore",
-      "github.com/shiena/ansicolor",
-      "golang.org/x/text",
-      "gopkg.in/yaml.v2",
-      "github.com/jessevdk/go-flags"
-    ]
-  }
+    {
+        "goPackagePath": "gopkg.in/yaml.v2",
+        "fetch": {
+            "type": "git",
+            "url": "https://gopkg.in/yaml.v2",
+            "rev": "a83829b6f1293c91addabc89d0571c246397bbf4",
+            "sha256": "1m4dsmk90sbi17571h6pld44zxz7jc4lrnl4f27dpd1l8g5xvjhh"
+        }
+    },
+    {
+        "goPackagePath": "github.com/jessevdk/go-flags",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/jessevdk/go-flags",
+            "rev": "1b89bf73cd2c3a911d7b2a279ab085c4a18cf539",
+            "sha256": "027nglc5xx1cm03z9sisg0iqrhwcj6gh5z254rrpl8p4fwrxx680"
+        }
+    },
+    {
+        "goPackagePath": "github.com/BurntSushi/toml",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/BurntSushi/toml",
+            "rev": "056c9bc7be7190eaa7715723883caffa5f8fa3e4",
+            "sha256": "0gkgkw04ndr5y7hrdy0r4v2drs5srwfcw2bs1gyas066hwl84xyw"
+        }
+    },
+    {
+        "goPackagePath": "golang.org/x/text",
+        "fetch": {
+            "type": "git",
+            "url": "https://go.googlesource.com/text",
+            "rev": "5eb8d4684c4796dd36c74f6452f2c0fa6c79597e",
+            "sha256": "1cjwm2pv42dbfqc6ylr7jmma902zg4gng5aarqrbjf1k2nf2vs14"
+        }
+    },
+    {
+        "goPackagePath": "github.com/monochromegane/conflag",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/monochromegane/conflag",
+            "rev": "6d68c9aa4183844ddc1655481798fe4d90d483e9",
+            "sha256": "0csfr5c8d3kbna9sqhzfp2z06wq6mc6ijja1zj2i82kzsq8534wa"
+        }
+    },
+    {
+        "goPackagePath": "github.com/monochromegane/go-home",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/monochromegane/go-home",
+            "rev": "25d9dda593924a11ea52e4ffbc8abdb0dbe96401",
+            "sha256": "172chakrj22xfm0bcda4qj5zqf7lwr53pzwc3xj6wz8vd2bcxkww"
+        }
+    },
+    {
+        "goPackagePath": "github.com/monochromegane/terminal",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/monochromegane/terminal",
+            "rev": "2da212063ce19aed90ee5bbb00ad1ad7393d7f48",
+            "sha256": "1rddaq9pk5q57ildms35iihghqk505gb349pb0f6k3svchay38nh"
+        }
+    },
+    {
+        "goPackagePath": "github.com/monochromegane/go-gitignore",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/monochromegane/go-gitignore",
+            "rev": "38717d0a108ca0e5af632cd6845ca77d45b50729",
+            "sha256": "0r1inabpgg6sn6i47b02hcmd2p4dc1ab1mcy20mn1b2k3mpdj4b7"
+        }
+    },
+    {
+        "goPackagePath": "github.com/shiena/ansicolor",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/shiena/ansicolor",
+            "rev": "a5e2b567a4dd6cc74545b8a4f27c9d63b9e7735b",
+            "sha256": "0gwplb1b4fvav1vjf4b2dypy5rcp2w41vrbxkd1dsmac870cy75p"
+        }
+    }
 ]

pkgs/tools/text/sift/deps.json

@@ -1,10 +1,29 @@
 [
-  {
-    "include": "../../libs.json",
-    "packages": [
-        "github.com/svent/go-flags",
-        "github.com/svent/go-nbreader",
-        "golang.org/x/crypto"
-    ]
-  }
+    {
+        "goPackagePath": "golang.org/x/crypto",
+        "fetch": {
+            "type": "git",
+            "url": "https://go.googlesource.com/crypto",
+            "rev": "575fdbe86e5dd89229707ebec0575ce7d088a4a6",
+            "sha256": "1kgv1mkw9y404pk3lcwbs0vgl133mwyp294i18jg9hp10s5d56xa"
+        }
+    },
+    {
+        "goPackagePath": "github.com/svent/go-flags",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/svent/go-flags",
+            "rev": "4bcbad344f0318adaf7aabc16929701459009aa3",
+            "sha256": "1gb416fgxl9gq4q6wsv3i2grq1mzbi7lvfvmfdqbxqbv9vizzh34"
+        }
+    },
+    {
+        "goPackagePath": "github.com/svent/go-nbreader",
+        "fetch": {
+            "type": "git",
+            "url": "https://github.com/svent/go-nbreader",
+            "rev": "7cef48da76dca6a496faa7fe63e39ed665cbd219",
+            "sha256": "0hw11jj5r3f6qwydg41nc3c6aadlbkhc1qpxra2609lis0qa9h4r"
+        }
+    }
 ]