Remove unneeded variables.

Thanks to martin@NetBSD.ORG (Martin Husemann) for the patch.
Bug #61744 r=cls

config/autoconf.mk.in

@@ -77,7 +77,6 @@ NO_NETSCAPE_STATIC = @NO_STATIC_LIB@
 ENABLE_TESTS	= @ENABLE_TESTS@
 IBMBIDI = @IBMBIDI@
 BUILD_IDLC = @BUILD_IDLC@
-NEED_BASE_DLL_NAME_ALSO = @NEED_BASE_DLL_NAME_ALSO@
 MOZ_ENDER_LITE = @MOZ_ENDER_LITE@
 MOZ_LDAP_XPCOM = @MOZ_LDAP_XPCOM@
 XPCOM_USE_LEA = @XPCOM_USE_LEA@
@@ -257,8 +256,6 @@ MKSHLIB_FORCE_ALL       = @MKSHLIB_FORCE_ALL@
 MKSHLIB_UNFORCE_ALL     = @MKSHLIB_UNFORCE_ALL@
 DSO_LDOPTS              = @DSO_LDOPTS@
 DLL_SUFFIX              = @DLL_SUFFIX@
-SHLIB_LDSTARTFILE	= @SHLIB_LDSTARTFILE@
-SHLIB_LDENDFILE		= @SHLIB_LDENDFILE@
 endif
 
 NO_LD_ARCHIVE_FLAGS     = @NO_LD_ARCHIVE_FLAGS@