dtrace: remove unexplained 16MB limitation from dt_alloc/dt_zalloc

The limitation was introduced in r178556 without any note or comment.
It seems pretty artificial and now it leads to problems like the following:
  $ dtrace -x bufsize=17m -n ...
  dtrace: processing aborted: Memory allocation failure
OpenSolaris and illumos never had this limitation.

Sponsored by:	HybridCluster

1 files changed, 0 insertions, 10 deletions

diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_subr.c b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_subr.c
index 87211a2..4429019 100644
--- a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_subr.c
+++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_subr.c
@@ -734,11 +734,6 @@ dt_zalloc(dtrace_hdl_t *dtp, size_t size)
 {
 	void *data;
 
-	if (size > 16 * 1024 * 1024) {
-		(void) dt_set_errno(dtp, EDT_NOMEM);
-		return (NULL);
-	}
-
 	if ((data = malloc(size)) == NULL)
 		(void) dt_set_errno(dtp, EDT_NOMEM);
 	else
@@ -752,11 +747,6 @@ dt_alloc(dtrace_hdl_t *dtp, size_t size)
 {
 	void *data;
 
-	if (size > 16 * 1024 * 1024) {
-		(void) dt_set_errno(dtp, EDT_NOMEM);
-		return (NULL);
-	}
-
 	if ((data = malloc(size)) == NULL)
 		(void) dt_set_errno(dtp, EDT_NOMEM);