diff --git a/gnu/usr.bin/groff/devascii/R.proto b/gnu/usr.bin/groff/devascii/R.proto
index 9a8909e85b79..876c74c4a6d8 100644
--- a/gnu/usr.bin/groff/devascii/R.proto
+++ b/gnu/usr.bin/groff/devascii/R.proto
@@ -3,15 +3,11 @@ internalname 0
 spacewidth 24
 charset
 !	24	0	0041
-r!	"
-TP	"
-Tp	"
 "	24	0	0042
 lq	"
 rq	"
 #	24	0	0043
 sh	"
-sc	"
 $	24	0	0044
 Do	"
 %	24	0	0045
@@ -20,20 +16,12 @@ Do	"
 aa	"
 fm	"
 aq	"
-ac	"
 (	24	0	0050
 )	24	0	0051
 *	24	0	0052
 **	"
-ho	"
 +	24	0	0053
 pl	"
-dg	"
-dd	"
-ad	"
-ah	"
--D	"
-Sd	"
 ,	24	0	0054
 \-	24	0	0055
 hy	"
@@ -61,12 +49,10 @@ la	"
 fo	"
 =	24	0	0075
 eq	"
-ss	"
 >	24	0	0076
 ra	"
 fc	"
 ?	24	0	0077
-r?	"
 @	24	0	0100
 at	"
 A	24	0	0101
@@ -119,8 +105,6 @@ rB	"
 a^	24	0	0136
 ^	"
 ha	"
-ua	"
-de	"
 _	24	0	0137
 ru	"
 ul	"
@@ -144,8 +128,6 @@ m	24	0	0155
 n	24	0	0156
 o	24	0	0157
 *o	"
-a-	"
-ao	"
 p	24	0	0160
 q	24	0	0161
 r	24	0	0162
@@ -153,7 +135,6 @@ s	24	0	0163
 t	24	0	0164
 u	24	0	0165
 v	24	0	0166
-da	"
 w	24	0	0167
 x	24	0	0170
 mu	"