Fix up some configure tests

spec/build_tests_spec.rb

@@ -2365,13 +2365,6 @@ EOF
       expect(result.stdout).to match /gcc.*-o.*\.o.*-DHAVE_MATH_H\s.*-DHAVE_STDIO_H/
     end
 
-    it "exits with an error if the project is not configured and a build is requested and autoconf is false" do
-      test_dir "configure"
-      result = run_rscons(args: %w[-f autoconf_false.rb])
-      expect(result.stderr).to match /Project must be configured first, and autoconf is disabled/
-      expect(result.status).to_not eq 0
-    end
-
     it "exits with an error code and message if configuration fails during autoconf" do
       test_dir "configure"
       result = run_rscons(args: %w[-f autoconf_fail.rb])
@@ -2381,13 +2374,6 @@ EOF
       expect(lines(result.stderr).last).to eq "Configuration failed"
     end
 
-    it "exits with an error if configuration has not been performed before attempting to create an environment" do
-      test_dir "configure"
-      result = run_rscons(args: %w[-f error_env_construction_before_configure.rb])
-      expect(result.stderr).to match /Project must be configured before creating an Environment/
-      expect(result.status).to_not eq 0
-    end
-
     it "does not rebuild after building with auto-configuration" do
       test_dir "configure"
       result = run_rscons(args: %w[-f autoconf_rebuild.rb])