[BOLT][NFC] Remove redundant assertion (#82056)

processLKSections() used to be a member of RewriteInstance. Since now it
is part of the LinuxKernelRewriter, the assertion is no longer needed.

Author: maksfb

bolt/lib/Rewrite/LinuxKernelRewriter.cpp

@@ -221,8 +221,6 @@ void LinuxKernelRewriter::insertLKMarker(uint64_t PC, uint64_t SectionOffset,
 }
 
 void LinuxKernelRewriter::processLKSections() {
-  assert(BC.IsLinuxKernel && "Linux kernel binary expected.");
-
   processLKExTable();
   processLKPCIFixup();
   processLKKSymtab();