Revert "+ testing: "Erase memory pages as soon as they are freed to prevent new processes getting old information" - https://github.com/sakindia123/htc_pico_kernel_3.x/commit/dafc5d3511a8f74d40c8908ec31abbb8f8066e7d"

This reverts commit 36e2488946e92e25035446818632bb4a350e0ed2.

Something is wrong with this commit, boot delayed allot, and boot
progress bar is shown after the logo,

i didnt see any wow change so, probably it's not adapted
to our 3.8.y MM code.
+ change freq only if runnings tasks > 1 [need testing]
Kernel 7.44 All included!
+ full sync ...
Merge remote-tracking branch 'dorimanx/master-jelly-bean' into master-3.0.y

+ ...