Revert "bionic/libm: fix x86 support regression"

This reverts commit 1e297188104f152edc61a60812b244aa8c6427c2.
Merge https://github.com/Mazout360/android_bionic into HEAD
Revert "Dynamically allocate soinfo-structs in linker"

This reverts commit ed26d701c4955bc3a4720bc2c7d9b6654a6956f1.