setup: remove non-required dependencies

Signed-off-by: Alessandro Comodi <acomodi@antmicro.com>

setup.py

diff --git a/setup.py b/setup.py
index 8388709..d1388b5 100644
--- a/setup.py
+++ b/setup.py
@@ -25,21 +25,12 @@
     url="https://github.com/SymbiFlow/prjxray",
     packages=['prjxray'],
     install_requires=[
-        'sdf-timing @ git+https://github.com/symbiflow/python-sdf-timing',
-        'fasm @ git+https://github.com/symbiflow/fasm',
+        'fasm',
         'intervaltree',
         'numpy',
-        'openpyxl',
-        'ordered-set',
-        'parse',
-        'progressbar2',
         'pyjson5',
-        'pytest',
         'pyyaml',
-        'scipy>=1.2.1',
         'simplejson',
-        'sympy',
-        'textx',
     ],
     classifiers=[
         "Programming Language :: Python :: 3",