Remove #if DO_DEFLATE

Remove #if DO_BSD_COMPRESS

They are the wrong way to enable/disable features and undocumented to boot.

sys/net/bsd_comp.c

@@ -52,7 +52,6 @@
 #define PACKETPTR	struct mbuf *
 #include <net/ppp_comp.h>
 
-#if DO_BSD_COMPRESS
 /*
  * PPP "BSD compress" compression
  *  The differences between this compression and the classic BSD LZW
@@ -1110,4 +1109,3 @@ bsd_decompress(state, cmp, dmpp)
     return DECOMP_FATALERROR;
 #endif /* DEBUG */
 }
-#endif /* DO_BSD_COMPRESS */

sys/net/ppp_deflate.c

@@ -39,8 +39,6 @@
 #define PACKETPTR	struct mbuf *
 #include <net/ppp_comp.h>
 
-#if DO_DEFLATE
-
 #define DEFLATE_DEBUG	1
 
 /*
@@ -676,5 +674,3 @@ z_incomp(arg, mi)
     state->stats.unc_bytes += rlen;
     state->stats.unc_packets++;
 }
-
-#endif /* DO_DEFLATE */