FS-8867: build using in tree libvpx, vpx no longer optional and does not use system libvpx due to issues with having to update it frequently conflicting with system libraries, now we link to the static in tree version instead. Also, mod_vpx is now a core module instead of a loadable module, so mod_vpx.so will no longer be built

src/mod/formats/mod_imagick/Makefile.am

@@ -1,7 +1,6 @@
 include $(top_srcdir)/build/modmake.rulesam
 MODNAME=mod_imagick
 
-if HAVE_VPX
 if HAVE_MAGICK
 
 mod_LTLIBRARIES = mod_imagick.la
@@ -16,10 +15,3 @@ all: error
 error:
 	$(error You must install libmagickcore-dev to build mod_imagick)
 endif
-
-else
-install: error
-all: error
-error:
-	$(error You must install libvpx2-dev to build mod_imagick)
-endif

src/mod/formats/mod_vlc/Makefile.am

@@ -1,7 +1,6 @@
 include $(top_srcdir)/build/modmake.rulesam
 MODNAME=mod_vlc
 
-if HAVE_VPX
 if HAVE_VLC
 
 mod_LTLIBRARIES = mod_vlc.la
@@ -16,10 +15,3 @@ all: error
 error:
 	$(error You must install libvlc-dev to build mod_vlc)
 endif
-
-else
-install: error
-all: error
-error:
-	$(error You must install libvpx2-dev to build mod_vlc)
-endif