rtld: remove check about ld.so having rel/rela relocations #4058

Job	Run time
Build mlibc (x86_64, mlibc, gcc)	3m 57s
Compile sysdeps (dripos)	2m 18s
Build mlibc (x86_64, mlibc-static, gcc)	3m 4s
Compile sysdeps (lemon)	2m 20s
Build mlibc (x86_64, mlibc-shared, gcc)	3m 11s
Compile sysdeps (aero)	2m 25s
Build mlibc (x86_64, mlibc-ansi-only, gcc)	2m 58s
Compile sysdeps (ironclad)	2m 20s
Compile sysdeps (lyre)	2m 23s
Compile sysdeps (keyronex)	2m 19s
Build mlibc (x86_64, mlibc-headers-only, gcc)	1m 57s
Compile sysdeps (managarm)	3m 3s
Build mlibc (riscv64, mlibc, gcc)	4m 2s
Compile sysdeps (vinix)	2m 19s
Build mlibc (riscv64, mlibc-static, gcc)	4m 29s
Compile sysdeps (astral)	2m 41s
Build mlibc (riscv64, mlibc-shared, gcc)	3m 25s
Build mlibc (riscv64, mlibc-ansi-only, gcc)	3m 19s
Build mlibc (riscv64, mlibc-headers-only, gcc)	1m 59s
Build mlibc (aarch64, mlibc, gcc)	4m 34s
Build mlibc (aarch64, mlibc-static, gcc)	3m 14s
Build mlibc (aarch64, mlibc-shared, gcc)	3m 14s
Build mlibc (aarch64, mlibc-ansi-only, gcc)	3m 29s
Build mlibc (aarch64, mlibc-headers-only, gcc)	2m 1s
Build mlibc (x86, mlibc, gcc)	4m 0s
Build mlibc (x86, mlibc-static, gcc)	3m 13s
Build mlibc (x86, mlibc-shared, gcc)	3m 6s
Build mlibc (x86, mlibc-ansi-only, gcc)	3m 9s
Build mlibc (x86, mlibc-headers-only, gcc)	2m 0s
Build mlibc (m68k, mlibc, gcc)	3m 30s
Build mlibc (m68k, mlibc-static, gcc)	2m 57s
Build mlibc (m68k, mlibc-shared, gcc)	2m 52s
Build mlibc (m68k, mlibc-ansi-only, gcc)	2m 44s
Build mlibc (m68k, mlibc-headers-only, gcc)	1m 55s
Build mlibc (x86_64, mlibc, clang)	3m 13s
	1h 43m 40s

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