del deprecated sdf code, explicit tlib use

tests/conftest.py

@@ -10,9 +10,11 @@ def mydir():
 @pytest.fixture(scope='session')
 def b14_circuit(mydir):
     from kyupy import verilog
-    return verilog.load(mydir / 'b14.v.gz', branchforks=True)
+    from kyupy.techlib import SAED32
+    return verilog.load(mydir / 'b14.v.gz', branchforks=True, tlib=SAED32)
 
 @pytest.fixture(scope='session')
 def b14_delays(mydir, b14_circuit):
     from kyupy import sdf
-    return sdf.load(mydir / 'b14.sdf.gz').iopaths(b14_circuit)[1:2]
+    from kyupy.techlib import SAED32
+    return sdf.load(mydir / 'b14.sdf.gz').iopaths(b14_circuit, tlib=SAED32)[1:2]

tests/test_sdf.py

@@ -2,6 +2,7 @@ import numpy as np
 
 from kyupy import sdf, verilog, bench
 from kyupy.wave_sim import WaveSim, TMAX, TMIN
+from kyupy.techlib import SAED32, SAED90
 
 def test_parse():
     test = '''
@@ -80,9 +81,9 @@ def test_b14(mydir):
 
 
 def test_gates(mydir):
-    c = verilog.load(mydir / 'gates.v')
+    c = verilog.load(mydir / 'gates.v', tlib=SAED90)
     df = sdf.load(mydir / 'gates.sdf')
-    lt = df.iopaths(c)[1]
+    lt = df.iopaths(c, tlib=SAED90)[1]
     nand_a = c.cells['nandgate'].ins[0]
     nand_b = c.cells['nandgate'].ins[1]
     and_a = c.cells['andgate'].ins[0]
@@ -134,7 +135,8 @@ def test_nand_xor():
             )
         )
         """)
-    d = df.iopaths(c)[1]
+    d = df.iopaths(c, tlib=SAED32)[1]
+    c.resolve_tlib_cells(SAED32)
     sim = WaveSim(c, delays=d, sims=16)
 
     # input A1