remove PDF export. Could be done by an external service using lichess PGN export

.gitmodules

@@ -4,9 +4,6 @@
 [submodule "public/vendor/tagmanager"]
 	path = public/vendor/tagmanager
 	url = https://github.com/max-favilli/tagmanager
-[submodule "submodules/pdfexporter"]
-	path = submodules/pdfexporter
-	url = https://github.com/ornicar/lichessPDFExporter
 [submodule "ui/chessli"]
 	path = ui/chessli
 	url = https://github.com/ornicar/chess.js

app/controllers/Export.scala

@@ -43,25 +43,6 @@ object Export extends LilaController {
     })
   }
 
-  private val PdfRateLimitGlobal = new lila.memo.RateLimit(
-    credits = 20,
-    duration = 1 minute,
-    name = "export PDF global",
-    key = "export.pdf.global")
-
-  def pdf(id: String) = Open { implicit ctx =>
-    OnlyHumans {
-      PdfRateLimitGlobal("-", msg = HTTPRequest lastRemoteAddress ctx.req) {
-        lila.mon.export.pdf()
-        OptionResult(GameRepo game id) { game =>
-          Ok.chunked(Enumerator.outputStream(env.pdfExport(game.id))).withHeaders(
-            CONTENT_TYPE -> "application/pdf",
-            CACHE_CONTROL -> "max-age=7200")
-        }
-      }
-    }
-  }
-
   private val PngRateLimitGlobal = new lila.memo.RateLimit(
     credits = 60,
     duration = 1 minute,

app/views/analyse/replay.scala.html

@@ -73,9 +73,6 @@ atom = atom.some) {
           @if(game.isPgnImport) {
           <a data-icon="x" class="text" rel="nofollow" href="@routes.Export.pgn(game.id)?as=imported">@trans.downloadImported()</a>
           }
-          @if(false) {
-          <a data-icon="x" class="text" target="_blank" rel="nofollow" href="@cdnUrl(routes.Export.pdf(game.id).url)">@trans.printFriendlyPDF()</a>
-          }
           @if(false && lila.game.Game.visualisableVariants(game.variant)) {
           <a data-icon="=" class="text" target="_blank" href="@routes.Export.visualizer(game.id)">Generate images</a>
           }

app/views/analyse/replayBot.scala.html

@@ -84,8 +84,6 @@ chessground = true) {
         /
         <a data-icon="x" rel="nofollow" href="@routes.Export.pgn(game.id)?as=imported"> @trans.downloadImported()</a>
         }
-        /
-        <a data-icon="x" target="_blank" rel="nofollow" href="@cdnUrl(routes.Export.pdf(game.id).url)"> @trans.printFriendlyPDF()</a>
       </p>
       <div class="pgn">@Html(nl2br(escapeHtml(pgn)))</div>
     </div>

conf/base.conf

@@ -386,7 +386,6 @@ game {
   }
   net.base_url = ${net.base_url}
   uci_memo.ttl = 2 minutes
-  pdf.exec_path = "submodules/pdfexporter"
   png {
     url = "http://homer.lichess.org:8080/board.png"
     size = 512

conf/routes

@@ -262,7 +262,6 @@ POST  /team/:id/close                         controllers.Team.close(id: String)
 POST  /$gameId<\w{8}>/request-analysis        controllers.Analyse.requestAnalysis(gameId: String)
 
 GET   /game/export/$gameId<\w{8}>.pgn         controllers.Export.pgn(gameId: String)
-GET   /game/export/pdf/$gameId<\w{8}>.pdf     controllers.Export.pdf(gameId: String)
 GET   /game/export/png/$gameId<\w{8}>.png     controllers.Export.png(gameId: String)
 GET   /game/visualizer/$gameId<\w{8}>         controllers.Export.visualizer(gameId: String)
 

modules/game/src/main/Env.scala

@@ -29,7 +29,6 @@ final class Env(
     val JsPathCompiled = config getString "js_path.compiled"
     val UciMemoTtl = config duration "uci_memo.ttl"
     val netBaseUrl = config getString "net.base_url"
-    val PdfExecPath = config getString "pdf.exec_path"
     val PngUrl = config getString "png.url"
     val PngSize = config getInt "png.size"
   }
@@ -39,8 +38,6 @@ final class Env(
 
   lazy val playTime = new PlayTime(gameColl)
 
-  lazy val pdfExport = PdfExport(PdfExecPath) _
-
   lazy val pngExport = new PngExport(PngUrl, PngSize)
 
   lazy val divider = new Divider

modules/game/src/main/PdfExport.scala

@@ -1,14 +0,0 @@
-package lila.game
-
-import java.io.{ File, OutputStream }
-import scala.sys.process._
-
-object PdfExport {
-
-  private val logger = ProcessLogger(_ => (), _ => ())
-
-  def apply(execPath: String)(id: String)(out: OutputStream) {
-    val exec = Process(Seq("php", "main.php", id), new File(execPath))
-    exec #> out ! logger
-  }
-}

submodules/pdfexporter

@@ -1 +0,0 @@
-Subproject commit e8de1dddd5ba0371cd6310d22f9c80a7574ec161