Remove unnecessary throw() specifications; LLVM doesn't use exceptions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78667 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/PBQP/PBQPMath.h

@@ -52,7 +52,7 @@ class Vector {
     }
 
     /// \brief Return the length of the vector
-    unsigned getLength() const throw () {
+    unsigned getLength() const {
       return length;
     }
 
@@ -143,10 +143,10 @@ class Matrix {
     }
 
     /// \brief Return the number of rows in this matrix.
-    unsigned getRows() const throw () { return rows; }
+    unsigned getRows() const { return rows; }
 
     /// \brief Return the number of cols in this matrix.
-    unsigned getCols() const throw () { return cols; }
+    unsigned getCols() const { return cols; }
 
     /// \brief Matrix element access.
     PBQPNum* operator[](unsigned r) {

lib/CodeGen/RegAllocPBQP.cpp

@@ -74,7 +74,7 @@ namespace {
     PBQPRegAlloc() : MachineFunctionPass(&ID) {}
 
     /// Return the pass name.
-    virtual const char* getPassName() const throw() {
+    virtual const char* getPassName() const {
       return "PBQP Register Allocator";
     }