remove unneeded dracut bootargs

anaconda-dracut now adds these itself.

share/config_files/ppc/yaboot.conf.in

@@ -6,4 +6,4 @@ image=/ppc/ppc@BITS@/vmlinuz
 	label=linux
 	initrd=/ppc/ppc@BITS@/initrd.img
 	read-only
-	append="@ROOT@ rd.luks=0 rd.md=0 rd.dm=0"
+	append="@ROOT@"

share/config_files/sparc/silo.conf

@@ -6,13 +6,13 @@ message=/boot/boot.msg
 image[sun4u]=/boot/vmlinuz
         label=linux
         alias=install
-        append="@ROOT@ rd.luks=0 rd.md=0 rd.dm=0"
+        append="@ROOT@"
         initrd=/boot/initrd.img
 image[sun4u]=/boot/vmlinuz
         label=text
-        append="@ROOT@ text rd.luks=0 rd.md=0 rd.dm=0"
+        append="@ROOT@ text"
         initrd=/boot/initrd.img
 image[sun4u]=/boot/vmlinuz
         label=ks
-        append="@ROOT@ ks rd.luks=0 rd.md=0 rd.dm=0"
+        append="@ROOT@ ks"
         initrd=/boot/initrd.img

share/config_files/x86/grub.conf

@@ -5,5 +5,5 @@ timeout 5
 hiddenmenu
 title @PRODUCT@ @VERSION@
 	findiso
-	kernel @KERNELPATH@ @ROOT@ rd.luks=0 rd.md=0 rd.dm=0
+	kernel @KERNELPATH@ @ROOT@
 	initrd @INITRDPATH@

share/config_files/x86/isolinux.cfg

@@ -60,7 +60,7 @@ label linux
   menu label ^Install or upgrade @PRODUCT@
   menu default
   kernel vmlinuz
-  append initrd=initrd.img @ROOT@ quiet rd.luks=0 rd.md=0 rd.dm=0
+  append initrd=initrd.img @ROOT@ quiet
 menu separator # insert an empty line
 # utilities submenu
 menu begin ^Troubleshooting
@@ -73,7 +73,7 @@ label vesa
 	@PRODUCT@.
   endtext
   kernel vmlinuz
-  append initrd=initrd.img @ROOT@ xdriver=vesa nomodeset quiet rd.luks=0 rd.md=0 rd.dm=0
+  append initrd=initrd.img @ROOT@ xdriver=vesa nomodeset quiet
 label rescue
   menu indent count 5
   menu label ^Rescue a @PRODUCT@ system.