tesseract: Don't run autogen.sh

A call to `autogen.sh` was introduced in 64bb607 because version 3.01 of
tesseract shipped without a `Makefile.in`. This has been corrected, so
re-generating the buildsystem is no longer necessary.

Also, the current `configure.ac` is no longer compatible with automake 1.13 so
builds were failing. Upstream issue:

  http://code.google.com/p/tesseract-ocr/issues/detail?id=819

Closes #16917.
fuse4x: Restore compatibility with automake

Remove depreciated `AM_CONFIG_HEADER` macro, removed in 1.13, and replace with
`AC_CONFIG_HEADERS`.

Also, fixup `makeconf.sh` to use `glibtoolize` and use `makeconf.sh` instead of
calling `autoreconf` to generate `configure`.

Fixes #16904.
sshfs: Restore compatibility with automake

Replace depreciated `AM_CONFIG_HEADER` macro, removed in automake 1.13, with
`AC_CONFIG_HEADERS`.

Fixes #16919.