pages.{ar,fa}: remove translated placeholders (#11997)

* pages.{ar,fa}: remove translated placeholders

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* common-arguments: reword note

* rmdir: fix Arabic translation

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

---------

Signed-off-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

pages.fa/android/pkg.md

@@ -9,16 +9,16 @@
 
 - نصب یک بسته :
 
-`pkg install {{بسته}}`
+`pkg install {{package}}`
 
 - حذف یک بسته :
 
-`pkg uninstall {{بسته}}`
+`pkg uninstall {{package}}`
 
 - نصب دوباره یک بسته :
 
-`pkg reinstall {{بسته}}`
+`pkg reinstall {{package}}`
 
 - جستجوی یک بسته :
 
-`pkg search {{بسته}}`
+`pkg search {{package}}`