Revert "find_library: Find shared libraries with numerical suffixes"

This reverts commit 2e3809314d09372a552c2d6e7b8e656960675957.

The raspbian image I was testing with did not have the libgl1-mesa-dev
package pre-installed. Installing that package adds the missing symlink.
Merge topic 'cross-compiling-toolchain-variables' into next

d2fb4a0 Revert "find_library: Find shared libraries with numerical suffixes"