[modules] Remove headers deprecated in C++17 from the module maps

[guitargeek]

Remove the headers ccomplex, cstdalign, cstdbool, and ctgmath from the module maps. They are deprecated since C++17 and should not be included anymore by ROOT or its users, as C++17 is the minimum supported C++ standard.

This fixes build warnings that can be seen in the CI when building with GCC 15, for example on Fedora 42:

[ 47%] Generating G__Core.cxx, ../lib/Core.pcm
While building module 'Core':
While building module 'std' imported from input_line_1:1:
In file included from <module-includes>:5:
/usr/lib/gcc/x86_64-redhat-linux/15/../../../../include/c++/15/ccomplex:51:4: warning: "<ccomplex> is deprecated in C++17, use <complex> instead" [-W#warnings]
 # warning "<ccomplex> is deprecated in C++17, use <complex> instead"
   ^
While building module 'Core':
While building module 'std' imported from input_line_1:1:
In file included from <module-includes>:23:
/usr/lib/gcc/x86_64-redhat-linux/15/../../../../include/c++/15/cstdalign:50:6: warning: "<cstdalign> is deprecated in C++17, remove the #include" [-W#warnings]
 #   warning "<cstdalign> is deprecated in C++17, remove the #include"
     ^
While building module 'Core':
While building module 'std' imported from input_line_1:1:
In file included from <module-includes>:25:
/usr/lib/gcc/x86_64-redhat-linux/15/../../../../include/c++/15/cstdbool:50:6: warning: "<cstdbool> is deprecated in C++17, remove the #include" [-W#warnings]
 #   warning "<cstdbool> is deprecated in C++17, remove the #include"
     ^
While building module 'Core':
While building module 'std' imported from input_line_1:1:
In file included from <module-includes>:30:
/usr/lib/gcc/x86_64-redhat-linux/15/../../../../include/c++/15/ctgmath:50:6: warning: "<ctgmath> is deprecated in C++17, use <complex> or <cmath> instead" [-W#warnings]
 #   warning "<ctgmath> is deprecated in C++17, use <complex> or <cmath> instead"

[dpiparo]

I added @hahnjo and @devajithvs to the reviewers.

[guitargeek]

Thanks! Note that there is one more warning about a non-standard header in C++20, but I don't know what we can do about that since still have to support C++17:

While building module 'Core':
While building module 'std' imported from input_line_1:1:
In file included from <module-includes>:12:
/usr/lib/gcc/x86_64-redhat-linux/15/../../../../include/c++/15/ciso646:49:6: warning: "<ciso646> is not a standard header since C++20, use <version> to detect implementation-specific macros" [-W#warnings]
#    warning "<ciso646> is not a standard header since C++20, use <version> to detect implementation-specific macros"

Can we also do something about that?

[github-actions]

Test Results

    22 files      22 suites   3d 18h 25m 2s ⏱️
 3 790 tests  3 788 ✅ 0 💤 2 ❌
80 293 runs  80 291 ✅ 0 💤 2 ❌

For more details on these failures, see this check.

Results for commit 4782571.

[ferdymercury]

Suggested change

	stlDeprecatedHeadersList = ["strstream"]
	stlDeprecatedHeadersList = ["strstream", "ciso646"]

maybe this could help?
(Not sure if strstream can be removed.)