component/{numpy,scipy}: Drop Python<3.8 compatibility

component/numpy/buildout.cfg

@@ -9,21 +9,15 @@ BLAS=None
 LAPACK=None
 ATLAS=None
 
-[numpy]
-recipe = zc.recipe.egg:custom
-egg = numpy
-environment = numpy-env
-
-[versions]
-numpy = 1.16.4
-
-[numpy:sys.version_info >= (3,8)]
-depends = ${numpy-pythonpath:recipe}
-
 [numpy-pythonpath]
 <= macro.pythonpath.eggs
 environment = numpy-env
 eggs = ${cython:egg}
 
-[versions:sys.version_info >= (3,8)]
+[numpy]
+recipe = zc.recipe.egg:custom
+egg = numpy
+environment = ${numpy-pythonpath:environment}
+
+[versions]
 numpy = 1.22.0

component/numpy/openblas.cfg

@@ -10,5 +10,4 @@ LAPACK = ${openblas:location}/lib/libopenblas.so
 ATLAS = ${openblas:location}/lib/libopenblas.so
 
 [numpy]
-environment = numpy-env
 rpath = ${openblas:location}/lib

component/scipy/buildout.cfg

@@ -7,24 +7,6 @@ parts = scipy
 [scipy-env]
 <= numpy-env
 
-[scipy]
-recipe = zc.recipe.egg:custom
-egg = scipy
-environment = scipy-env
-setup-eggs = ${numpy:egg}
-rpath = ${numpy:rpath}
-
-[versions]
-scipy = 1.0.1
-
-[scipy:sys.version_info >= (3,8)]
-depends = ${scipy-pythonpath:recipe}
-
-[scipy-pythonpath]
-<= macro.pythonpath.eggs
-environment = scipy-env
-eggs = ${scipy-setup-eggs:eggs}
-
 [scipy-setup-eggs]
 recipe = zc.recipe.egg
 eggs =
@@ -34,7 +16,18 @@ eggs =
   pythran
   pybind11
 
-[versions:sys.version_info >= (3,8)]
+[scipy-pythonpath]
+<= macro.pythonpath.eggs
+environment = scipy-env
+eggs = ${scipy-setup-eggs:eggs}
+
+[scipy]
+recipe = zc.recipe.egg:custom
+egg = scipy
+environment = ${scipy-pythonpath:environment}
+rpath = ${numpy:rpath}
+
+[versions]
 pybind11 = 2.9.2
 scipy = 1.8.1
 beniget = 0.4.1