ir3/legalize: don't force (ss) after predt

This isn't necessary and since predt is a terminator and we (mistakenly)
didn't propagate force_ss across blocks, it wasn't actually applied.

Signed-off-by: Job Noorman <jnoorman@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35653>

src/freedreno/ir3/ir3_legalize.c

@@ -210,8 +210,6 @@ sync_update(struct ir3_legalize_state *state, struct ir3_compiler *compiler,
    if (is_barrier(n)) {
       state->force_ss = true;
       state->force_sy = true;
-   } else if (n->opc == OPC_PREDT) {
-      state->force_ss = true;
    } else {
       state->force_ss = false;
       state->force_sy = false;