Revert "Show echo output when running ./configure via make"
Revert "Show echo output when running ./configure via make"

Reverts commit 3092620f6b596c6b6700debf464ffe55863707e7.

This commit caused the "CONFIGURE config.mk" output to be printed
unconditionally, even though the actual commands are only run if
config.mk doesn't exist. This is very misleading, especially when
combined with "make -B".

craigbarnes/lua-gumbo,craigbarnes/lua-gumbo,craigbarnes/lua-gumbo