print/*: Fix ports installation of TeX2021

There have some CONFLICTS which doesn't make sense and actually makes
it impossible to install/upgrade the TeX through portmaster/ports so
remove those CONFLICTS and update UPDATING accordingly.

PR:		262058
Reported by:	alt2600@icloud.com

UPDATING

@@ -36,9 +36,11 @@ you update your ports collection, before attempting any port upgrades.
   create a ticket or send a mail to tex@FreeBSD.org
 
   print/tex-aleph has been removed as per upstream. This package should be
-  removed manually:
+  removed manually. Additionally users have reported to delete 
+  texlive-texmf prior to starting update, or pkg-static will indicate
+  there is a conflict during the upgrade of texlive-base :
 
-  # pkg remove tex-aleph
+  # pkg remove tex-aleph texlive-texmf
 
 20220218:
   AFFECTS: users of net-mgmt/librenms

print/texlive-base/Makefile

@@ -110,7 +110,7 @@ CONFIGURE_ARGS+=--with-system-$L \
 MAKE_ENV=	CONFIG_SITE=${CONFIG_SITE}
 INSTALL_TARGET=	install-strip
 
-CONFLICTS_INSTALL=	detex dvi2tty ps2eps texlive-texmf
+CONFLICTS_INSTALL=	detex dvi2tty ps2eps
 
 BINARY_ALIAS=	freetype-config=true
 EXTRACT_AFTER_ARGS=	${EXCLUDE_FILES:S,^,--exclude ,}

print/texlive-tlmgr/Makefile

@@ -19,8 +19,6 @@ CPE_VENDOR=	tug
 USE_PERL5=	run
 USE_TEX=	kpathsea
 
-CONFLICTS=	texlive-base-[0-9]* texlive-infra
-
 NO_ARCH=	yes
 NO_BUILD=	yes
 

print/xpdfopen/Makefile

@@ -16,8 +16,6 @@ USE_XORG=	x11 xmu
 EXTRACT_FILES=	build-aux utils/xpdfopen
 GNU_CONFIGURE=	yes
 
-CONFLICTS=	texlive-base-*
-
 EXTRACT_AFTER_ARGS=	${EXTRACT_FILES:S,^,${DISTNAME}/,}
 
 WRKSRC=		${WRKDIR}/${DISTNAME}/utils/xpdfopen