Fix faulty double const additions

Author: Skylion007

include/pybind11/cast.h

@@ -268,7 +268,7 @@ class type_caster<void> : public type_caster<void_type> {
         }
 
         /* Check if this is a C++ type */
-        const const auto &bases = all_type_info((PyTypeObject *) type::handle_of(h).ptr());
+        const auto &bases = all_type_info((PyTypeObject *) type::handle_of(h).ptr());
         if (bases.size() == 1) { // Only allowing loading from a single-value type
             value = values_and_holders(reinterpret_cast<instance *>(h.ptr())).begin()->value_ptr();
             return true;

include/pybind11/pybind11.h

@@ -384,7 +384,7 @@ class cpp_function : public function {
         std::string signature;
         size_t type_index = 0, arg_index = 0;
         bool is_starred = false;
-        for (const const auto *pc = text; *pc != '\0'; ++pc) {
+        for (const auto *pc = text; *pc != '\0'; ++pc) {
             const auto c = *pc;
 
             if (c == '{') {