Remove obsolete assert and fix compiler warning

ggml.c

@@ -6317,8 +6317,6 @@ static void ggml_compute_forward_mul_mat_f16_f32(
 
             float * dst_col = (float *) ((char *) dst->data + (i0*nb0 + 0*nb1 + i2*nb2 + i3*nb3));
 
-            assert(ne00 % 32 == 0);
-
             for (int ic = 0; ic < ne11; ++ic) {
                 ggml_vec_dot_f16(ne00, &dst_col[ic*ne0], src0_row, src1_col + ic*ne00);
             }

main.cpp

@@ -478,7 +478,7 @@ int main(int argc, char ** argv) {
                 std::string buffer;
                 if (!params.input_prefix.empty()) {
                     buffer += params.input_prefix;
-                    printf(buffer.c_str());
+                    printf("%s", buffer.c_str());
                 }
 
                 std::string line;