msdos622it: Remove "Boot / " from non-disk 1 image names

Author: chungy

hash/ibm5170.xml

@@ -3729,13 +3729,13 @@ license:CC0-1.0
 			</dataarea>
 		</part>
 		<part name="flop2" interface="floppy_3_5">
-			<feature name="part_id" value="Boot / Installation Disk 2" />
+			<feature name="part_id" value="Installation Disk 2" />
 			<dataarea name="flop" size="1474560">
 				<rom name="disk2it.img" size="1474560" crc="a2b4513f" sha1="ca5bca4a1d593e175e7b71e27b54b9a4e58ab697"/>
 			</dataarea>
 		</part>
 		<part name="flop3" interface="floppy_3_5">
-			<feature name="part_id" value="Boot / Installation Disk 3" />
+			<feature name="part_id" value="Installation Disk 3" />
 			<dataarea name="flop" size="1474560">
 				<rom name="disk3it.img" size="1474560" crc="3b2937a8" sha1="1b774a0de129345fcd6440399a1ef0112c829927"/>
 			</dataarea>