Revert "Remount system RW before creating symlinks"

This reverts commit 2a0d160103ca43cf3c43c7d178ecc1de8eef6115.
Revert "Use Kernelmodules supplied by the Kernel instead of the ones included in the rom"

This reverts commit 6fef4b2690c44a783b6dacc01a74ab32a60d5c75.