Allow Accelerate linkage, deny veclibfort & lapack

- Accelerate provides more than just BLAS and LAPACK functionality, see
   https://developer.apple.com/documentation/accelerate
 - Veclibfort exists only to wrap Accelerate's BLAS/LAPACK
 - LAPACK is a slow, seldom updated reference implementation
 - Encourage usage of OpenBLAS
 - Reverts PR #6130

Library/Homebrew/extend/os/mac/formula_cellar_checks.rb

@@ -48,28 +48,6 @@ module FormulaCellarChecks
     EOS
   end
 
-  def check_accelerate_framework_links
-    return unless @core_tap
-    return unless formula.prefix.directory?
-    return if formula.name == "veclibfort" # veclibfort exists to wrap accelerate
-
-    keg = Keg.new(formula.prefix)
-    system_accelerate = keg.mach_o_files.select do |obj|
-      dlls = obj.dynamically_linked_libraries
-      dlls.any? { |dll| %r{^/System/Library/Frameworks/Accelerate.framework}.match dll }
-    end
-    return if system_accelerate.empty?
-
-    <<~EOS
-      object files were linked against system Accelerate
-      These object files were linked against the outdated system Accelerate framework.
-      Core tap formulae should link against OpenBLAS instead.
-      Removing `depends_on "veclibfort" and/or adding `depends_on "openblas"` to the
-      formula may help.
-        #{system_accelerate * "\n  "}
-    EOS
-  end
-
   def check_python_framework_links(lib)
     python_modules = Pathname.glob lib/"python*/site-packages/**/*.so"
     framework_links = python_modules.select do |obj|
@@ -117,7 +95,6 @@ module FormulaCellarChecks
     generic_audit_installed
     problem_if_output(check_shadowed_headers)
     problem_if_output(check_openssl_links)
-    problem_if_output(check_accelerate_framework_links)
     problem_if_output(check_python_framework_links(formula.lib))
     check_linkage
   end

Library/Homebrew/rubocops/text.rb

@@ -16,6 +16,10 @@ module RuboCop
             problem "Formulae should not depend on both OpenSSL and LibreSSL (even optionally)."
           end
 
+          if depends_on?("veclibfort") || depends_on?("lapack")
+            problem "Formulae should use OpenBLAS as the default serial linear algebra library."
+          end
+
           if method_called_ever?(body_node, :virtualenv_create) ||
              method_called_ever?(body_node, :virtualenv_install_with_resources)
             find_method_with_args(body_node, :resource, "setuptools") do