beam: remove sys.path shadowing so CHECK runs against repo modules

wizard-work/beam/test_csv.py

@@ -1,5 +1,3 @@
-import sys
-sys.path.insert(0, "/root/.hermes/wizard-outputs/beam")
 from csv_rfc4180 import parse_csv, write, loads, dumps
 
 def eq(a,b):

wizard-work/beam/test_safe_eval.py

@@ -1,5 +1,3 @@
-import sys
-sys.path.insert(0, "/root/.hermes/wizard-outputs/beam")
 from safe_eval import evaluate
 
 cases = [

wizard-work/beam/test_sliding_window.py

@@ -1,5 +1,3 @@
-import sys
-sys.path.insert(0, "/root/.hermes/wizard-outputs/beam")
 from sliding_window import SlidingWindow
 
 def test_basic():

wizard-work/beam/test_topo.py

@@ -1,5 +1,3 @@
-import sys
-sys.path.insert(0, "/root/.hermes/wizard-outputs/beam")
 from topo_sort import topo_sort
 
 def check(order, edges):

wizard-work/beam/test_topo_beam.py

@@ -1,5 +1,3 @@
-import sys
-sys.path.insert(0, "/root/.hermes/wizard-outputs/beam")
 from topo import topo_sort, has_cycle, CycleError
 
 def test_empty():

wizard-work/beam/test_topo_sort.py

@@ -1,6 +1,4 @@
 """Tests for topo_sort."""
-import sys
-sys.path.insert(0, "/root/.hermes/wizard-outputs/beam")
 from topo_sort import topo_sort