configure: remove pod2man from the config list

The configure has the --disable-manpages option for this purpose, and
--disable-pod2man is currently ignored due to that. This is also
consistent with the other documentation options.

diff --git a/configure b/configure
index 9529d50b1fa0caa90dd4707fe89045f0a2d4ba6b..c6eba84423a689c035b1102d9200bbf2eafe1be3 100755 (executable)
--- a/configure
+++ b/configure
@@ -1702,7 +1702,6 @@ CONFIG_LIST="
     memory_poisoning
     neon_clobber_test
     pic
-    pod2man
     raise_major
     thumb
     valgrind_backtrace