prepare: Fix and Cleanup unnecessary checks (#351)

this is broken actually and something like this is not needed after the changes of 3462554540

linux-tkg-config/prepare

@@ -1122,8 +1122,7 @@ _tkg_srcprep() {
     fi
   fi
 
-  if ( [ "$_futex2" = "true" ] && [ -e "$srcdir/0007-v${_basekernel}-futex2_interface.patch" ] ) \
-    && ( [ "$_futex_waitv" != "true" ] && [ -e "$srcdir/0007-v${_basekernel}-futex_waitv.patch" ] ); then
+  if [ "$_futex2" = "true" ] && [ -e "$srcdir/0007-v${_basekernel}-futex2_interface.patch" ]; then
     sed -i -e 's/# CONFIG_EXPERT is not set/CONFIG_EXPERT=y/' ./.config
     echo -e "\r# start of config expert\r
 # CONFIG_DEBUG_RSEQ is not set\r