lint: remove a couple of obsolete syntax checks

* syntax-checks.mk (sc_obsolete_requirements_rules): Remove
definition of this variable.
(modern-requirement.texi2dvi-o): Likewise.
(modern-requirement.makeinfo-html): Likewise.
($(sc_obsolete_requirements_rules)): Remove these obsolete
syntax checks.

Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>

diff --git a/syntax-checks.mk b/syntax-checks.mk
index ef05d06..61737ae 100644 (file)
--- a/syntax-checks.mk
+++ b/syntax-checks.mk
@@ -57,7 +57,6 @@ sc_perl_at_uscore_in_scalar_context \
 sc_perl_local \
 sc_AMDEP_TRUE_in_automake_in \
 sc_make_without_am_makeflags \
-$(sc_obsolete_requirements_rules) \
 sc_tests_no_source_defs \
 sc_tests_obsolete_variables \
 sc_tests_here_document_format \
@@ -266,19 +265,6 @@ sc_tests_obsolete_variables:
          exit 1; \
        else :; fi
 
-# Look out for obsolete requirements specified in the test cases.
-sc_obsolete_requirements_rules = sc_no_texi2dvi-o sc_no_makeinfo-html
-modern-requirement.texi2dvi-o = texi2dvi
-modern-requirement.makeinfo-html = makeinfo
-
-$(sc_obsolete_requirements_rules): sc_no_% :
-       @if grep -E 'required=.*\b$*\b' $(xtests); then \
-         echo "Requirement '$*' is obsolete and shouldn't" \
-              "be used anymore." >&2; \
-         echo "You should use '$(modern-requirement.$*)' instead." >&2; \
-         exit 1; \
-       fi
-
 # Tests should never call some programs directly, but only through the
 # corresponding variable (e.g., '$MAKE', not 'make').  This will allow
 # the programs to be overridden at configure time (for less brittleness)