telegram-desktop: disable autoupdate properly

and some minor cleanup of unused things

resolves #10107

srcpkgs/telegram-desktop/files/Telegram.cmake

@@ -130,8 +130,8 @@ file(GLOB_RECURSE SUBDIRS_SOURCE_FILES
 add_executable(Telegram WIN32 ${QRC_FILES} ${FLAT_SOURCE_FILES} ${SUBDIRS_SOURCE_FILES})
 
 set(TELEGRAM_COMPILE_DEFINITIONS
+	TDESKTOP_DISABLE_AUTOUPDATE
 	TDESKTOP_DISABLE_DESKTOP_FILE_GENERATION
-	TDESKTOP_DISABLE_UNITY_INTEGRATION
 	NOMINMAX
 	__STDC_FORMAT_MACROS
 )

srcpkgs/telegram-desktop/patches/fix-xdg.patch

@@ -23,7 +23,7 @@ index 0a80695..550b9f7 100644
  Comment=Official desktop version of Telegram messaging app
 -Exec=telegram-desktop -- %u
 -Icon=telegram
-+Exec=env SESSION_MANAGER= Telegram -externalupdater -- %u
++Exec=env SESSION_MANAGER= Telegram -- %u
 +Icon=telegram
  Terminal=false
  StartupWMClass=TelegramDesktop

srcpkgs/telegram-desktop/template

@@ -1,7 +1,7 @@
 # Template file for 'telegram-desktop'
 pkgname=telegram-desktop
 version=1.6.1
-revision=1
+revision=2
 _libtgvoip_commit=16711e202393ae7e1b160436f4291c5f06a3d375
 _GSL_commit=d846fe50a3f0bb7767c7e087a05f4be95f4da0ec
 _variant_commit=550ac2f159ca883d360c196149b466955c77a573
@@ -36,8 +36,8 @@ checksum="eb092e6752c3802250f54f95af39d2e7c2f346a587caff8e8dc501d91c3de5b4
  0f4143814b17d61d09c6a7fb6764ce74756ec14c0aab94cd65758f7b5a6d2928
  d24e6d9df2b8aa5739d3b9077c6b0ff0ef4d5ef8acc52c3a57e32893854d8d18"
 
-build_options="clang custom_api_id pulseaudio"
-build_options_default="pulseaudio custom_api_id"
+build_options="clang pulseaudio"
+build_options_default="pulseaudio"
 
 CXXFLAGS="-DTDESKTOP_API_ID=209235 -DTDESKTOP_API_HASH=169ee702e1df4b6e66d80311db36cc43"
 
@@ -104,10 +104,6 @@ post_extract() {
 
 	mkdir -p ${build_wrksrc}/native
 	cp ${FILESDIR}/TelegramCodegenTools.cmake ${build_wrksrc}/native/CMakeLists.txt
-	mkdir ${wrksrc}/TelegramPrivate
-	if [ -r "$FILESDIR/custom_api_id.h" ]; then
-		cp "${FILESDIR}/custom_api_id.h" "${wrksrc}/TelegramPrivate"
-	fi
 }
 
 pre_configure() {