skeleton/etc/profile: drop aliases

They all depend on having a custom busybox config and/or fully featured
utilities which depend on BR2_PACKAGE_BUSYBOX_SHOW_OTHERS.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

system/skeleton/etc/profile

@@ -33,17 +33,6 @@ if [ "$PS1" ]; then
     export INPUTRC=/etc/inputrc
     export DMALLOC_OPTIONS=debug=0x34f47d83,inter=100,log=logfile
 
-    ### Some aliases
-    alias ps2='ps facux '
-    alias ps1='ps faxo "%U %t %p %a" '
-    alias af='ps af'
-    alias cls='clear'
-    alias df='df -h'
-    alias indent='indent -bad -bap -bbo -nbc -br -brs -c33 -cd33 -ncdb -ce -ci4 -cli0 -cp33 -cs -d0 -di1 -nfc1 -nfca -hnl -i4 -ip0 -l75 -lp -npcs -npsl -nsc -nsob -nss -ts4 '
-    #alias bc='bc -l'
-    alias minicom='minicom -c on'
-    alias calc='calc -Cd '
-    alias bc='calc -Cd '
 fi;
 
 # Source configuration files from /etc/profile.d