g2o: simplify cppstd checks

recipes/g2o/all/conanfile.py

@@ -5,7 +5,6 @@
 from conan.tools.build import check_min_cppstd, check_max_cppstd
 from conan.tools.cmake import CMake, CMakeDeps, CMakeToolchain, cmake_layout
 from conan.tools.files import copy, get, rm, rmdir, save, export_conandata_patches, apply_conandata_patches, replace_in_file
-from conan.tools.scm import Version
 
 required_conan_version = ">=1.53.0"
 
@@ -71,23 +70,6 @@ class G2oConan(ConanFile):
         "with_csparse": False,
     }
 
-    @property
-    def _min_cppstd(self):
-        return 17
-
-    @property
-    def _max_cppstd(self):
-        return 17
-
-    @property
-    def _compilers_minimum_version(self):
-        return {
-            "msvc": "192",
-            "gcc": "8",
-            "clang": "7",
-            "apple-clang": "12",
-        }
-
     def export_sources(self):
         export_conandata_patches(self)
         copy(self, "FindSuiteSparse.cmake", self.recipe_folder, self.export_sources_folder)
@@ -141,15 +123,10 @@ def requirements(self):
         # self.requires("libqglviewer/x.y.z")
 
     def validate(self):
-        check_min_cppstd(self, self._min_cppstd)
+        check_min_cppstd(self, 17)
         # C++20 fails with
         # error: call to non-‘constexpr’ function ‘void fmt::v10::detail::throw_format_error(const char*)’
-        check_max_cppstd(self, self._max_cppstd)
-        minimum_version = self._compilers_minimum_version.get(str(self.settings.compiler), False)
-        if minimum_version and Version(self.settings.compiler.version) < minimum_version:
-            raise ConanInvalidConfiguration(
-                f"{self.ref} requires C++{self._min_cppstd}, which your compiler does not support."
-            )
+        check_max_cppstd(self, 17)
 
         if self.settings.os == "Windows" and self.options.shared:
             # Build fails with "unresolved external symbol "public: __cdecl g2o::internal::LoggerInterface::LoggerInterface(void)"