mk: LZMA_SUPPORT is unused

Retire LZMA_SUPPORT. It's unused since r332995.

Reviewed by:		delphij
PR:			244302
Sponsored by:		Netflix
Differential Revision:	https://reviews.freebsd.org/D31088

share/man/man5/src.conf.5

@@ -1,6 +1,6 @@
 .\" DO NOT EDIT-- this file is @generated by tools/build/options/makeman.
 .\" $FreeBSD$
-.Dd June 28, 2021
+.Dd July 6, 2021
 .Dt SRC.CONF 5
 .Os
 .Sh NAME
@@ -1040,8 +1040,6 @@ and related programs.
 Build
 .Xr ls 1
 without support for colors to distinguish file types.
-.It Va WITHOUT_LZMA_SUPPORT
-Build some programs without optional lzma compression support.
 .It Va WITHOUT_MAIL
 Do not build any mail support (MUA or MTA).
 When set, it enforces these options:

share/mk/src.opts.mk

@@ -139,7 +139,6 @@ __DEFAULT_YES_OPTIONS = \
     LOCATE \
     LPR \
     LS_COLORS \
-    LZMA_SUPPORT \
     MAIL \
     MAILWRAPPER \
     MAKE \

tools/build/options/WITHOUT_LZMA_SUPPORT

@@ -1,2 +0,0 @@
-.\" $FreeBSD$
-Build some programs without optional lzma compression support.