[Mips] Remove unused class field.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203398 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Remove redundant call to the unique_ptr::get() method followed
by the returned pointer dereferencing.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203399 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Remove redundant 'mips' prefix from names of MipsTargetHandler
and MipsDynamicSymbolTable classes fields.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203400 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Mark class by 'final' keyword.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203401 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Do not inherit MipsDynamicLibraryWriter and MipsExecutableWriter
from MipsELFWriter class. MipsELFWriter is just a helper.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203402 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Remove unnecessary LLVM_ATTRIBUTE_UNUSED attribute.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203403 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Change unused return type from 'bool' to 'void'.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203404 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Reduce the code indentation.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203405 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Remove redundant 'mips' prefix from names of MipsELFWriter class
fields.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203406 91177308-0d34-0410-b5e6-96231b3b80d8
[Mips] Rename R_MIPS_26 relocation handling test case.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@203407 91177308-0d34-0410-b5e6-96231b3b80d8