gst/: Remove gst_library_load as it does more harm than good with the new g_module...

gst/: Remove gst_library_load as it does more harm than good with the new g_module flags.

Original commit message from CVS:
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_set_checkgetrange_function),
(gst_pad_link_check_compatible_unlocked), (gst_pad_link_prepare),
(gst_pad_check_pull_range), (gst_pad_pull_range),
(gst_static_pad_template_get_caps), (gst_pad_start_task),
(gst_pad_pause_task), (gst_pad_stop_task):
* gst/gstplugin.c: (gst_plugin_load):
* gst/gstplugin.h:
Remove gst_library_load as it does more harm than good with
the new g_module flags.
Revert bogus caps template check in pad linking, pad caps
are important when linking not the template, which is more
general than the current caps.