deskutils/ydotool: drop unused dependencies after 776f54e2056e

$ poudriere testport -j 122amd64 deskutils/ydotool
[...]
=>> Checking shared library dependencies

• 0x0000000000000001 NEEDED Shared library: [libboost_program_options.so.1.72.0]
• 0x0000000000000001 NEEDED Shared library: [libc++.so.1] 0x0000000000000001 NEEDED Shared library: [libc.so.7]
• 0x0000000000000001 NEEDED Shared library: [libcxxrt.so.1]
• 0x0000000000000001 NEEDED Shared library: [libdl.so.1] 0x0000000000000001 NEEDED Shared library: [libepoll-shim.so.0]
• 0x0000000000000001 NEEDED Shared library: [libevdevPlus.so.0]
• 0x0000000000000001 NEEDED Shared library: [libgcc_s.so.1]
• 0x0000000000000001 NEEDED Shared library: [libm.so.5]
• 0x0000000000000001 NEEDED Shared library: [libthr.so.3]
• 0x0000000000000001 NEEDED Shared library: [libuInputPlus.so.0]
• 0x0000000000000001 NEEDED Shared library: [libydotool.so.0]