Drop an unused function

Change-Id: I59eb46f9d57e9fd72ed86c972685be93d154e3c7
Disable libreofficekit_tiledrendering test for now.

LOK Document loading seems to be quite unreliable for various reasons.
coverity#1226480 Unchecked dynamic_cast

Change-Id: I07c0ee479a384d213a1b9b9252846bd9873b0bdc
coverity#1226481 Dereference after null check

Change-Id: I93f9bfb7a360b2851d179f6c4535b416fff339bc
coverity#1226482 Dereference after null check

Change-Id: I2723812f960cde23c480651c9f8f5b26585fd51d
coverity#1226485 Dereference null return value

Change-Id: Ib875f26170b90416e2ab1c498d93fb727d9633ce
coverity#1226487 Dereference null return value

Change-Id: Icbdf4f4b1739a63aa02260ddc3b29097cb157b63
coverity#1226494 Uninitialized pointer field

Change-Id: I88d0414ea6188e807aa347dce4567821e0b7c6f3
coverity#1226484 Using invalid iterator

Change-Id: I30e4d365fb2a851ea8d81e9f45a6f4d0bf6d7ec7
coverity#1224992 Uncaught exception

Change-Id: I42287e6709a157a65bfb783d14fbf889de2e54b2
coverity#1215318 Uncaught exception

Change-Id: I784198cacba86fe1778e49ceebe574b9cbd6888b
coverity#1202900 Uncaught exception

Change-Id: I9e49abc490935710b471c79d19385bda37f038b0
coverity#737268 Uncaught exception

Change-Id: I376d560a772d7496943d7aee09e2972f33731d9b
fix indent

Change-Id: I799d7a7989209e9fab03fbc79439b64e6c689499
coverity#707363 Uncaught exception

Change-Id: I729204cbe833ad57eb20a02c4773dd66238fbc0d
coverity#706384 Uncaught exception

Change-Id: Ieadbc90be19ec14d78fdf352df7537c69c66616b
coverity#1202783 Division or modulo by zero

Change-Id: Ida169195697d3976500a16e3cced40b25664a02e
coverity#704477 Division or modulo by float zero

Change-Id: If229ad014851f46ccad5f8aec24cbf0bd2781b5e
coverity#708018 Uninitialized scalar field

Change-Id: Ifde16da72b009f0f32a70ccadab08083f5ff14e1
coverity#1215398 Uninitialized scalar field

Change-Id: I00fd3afeca6e7c0902231fe88f7f23d4a2b32a3f