Fix warnings related to Vector3::operator= and remove -Wno-deprecated-copy suppression

# Conflicts:
#	cmake/compiler/clang/settings.cmake

cmake/compiler/clang/settings.cmake

@@ -14,12 +14,6 @@ if(WITH_WARNINGS)
       -Wno-mismatched-tags
       -Woverloaded-virtual)
  
-  if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
-    target_compile_options(trinity-warning-interface
-      INTERFACE
-        -Wno-deprecated-copy) # warning in g3d
-  endif()
-
   message(STATUS "Clang: All warnings enabled")
 endif()
 

cmake/compiler/gcc/settings.cmake

@@ -33,10 +33,6 @@ if( WITH_WARNINGS )
       -Wfatal-errors
       -Woverloaded-virtual)
 
-  target_compile_options(trinity-warning-interface
-    INTERFACE
-      -Wno-deprecated-copy) # warning in g3d
-
   message(STATUS "GCC: All warnings enabled")
 endif()