Some --enable-ext-* switches got removed

...with 8dc38d9d "Remove obsolete OxygenOffice
bits"

Change-Id: I796505a87a821d6f7f0b79ade9fdeec89932e561

distro-configs/Jenkins/Linux_ubsan_master.conf

@@ -6,17 +6,12 @@
 --enable-epm
 --enable-evolution2
 --enable-ext-ct2n
---enable-ext-diagram
 --enable-ext-google-docs
---enable-ext-hunart
 --enable-ext-languagetool
 --enable-ext-mariadb-connector
 --with-system-mariadb
 --enable-ext-nlpsolver
 --enable-ext-numbertext
---enable-ext-typo
---enable-ext-validator
---enable-ext-watch-window
 --enable-ext-wiki-publisher
 --enable-extra-font
 --enable-extra-gallery