feat(LibCarla/ros2): remove legacy FastDDS-generated type files

Delete 125 auto-generated FastDDS type files from
LibCarla/source/carla/ros2/types/: 31 type-definition pairs
({TypeName}.h + {TypeName}.cpp), 31 PubSubType pairs
({TypeName}PubSubTypes.h + {TypeName}PubSubTypes.cpp), and
FastDDSConversions.h.

These files were generated by fastddsgen from IDL definitions and are no
longer referenced anywhere in the codebase. GenericCdrPubSubType<T>
(introduced in carla-simulator#9643) replaces all 31 hand-generated PubSubType classes by
serializing carla::ros2::msg::* POD structs directly to CDR bytes via
CdrSerialization.h, with no dependency on these files.

Both cmake/fast_dds/CMakeLists.txt and cmake/cyclone_dds/CMakeLists.txt
collect type files via file(GLOB) patterns (types/*.h, types/*.cpp), so no
CMake changes are needed. The globs self-adjust on the next configure pass.

After this change, LibCarla/source/carla/ros2/types/ contains only:
CdrSerialization.h, CdrTopicInfo.h, and msg/ (31 POD struct headers).

Tests: 120/120 server + 56/56 client + 2/2 smoke.

Author: JesusAnaya