arch, cpu: Remove float type accessors.

Use the binary accessors instead.

Change-Id: Iff1877e92c79df02b3d13635391a8c2f025776a2
Reviewed-on: https://gem5-review.googlesource.com/c/14457
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/cpu/exec_context.hh

@@ -104,18 +104,11 @@ class ExecContext {
      * @name Floating Point Register Interfaces
      */
 
-    /** Reads a floating point register of single register width. */
-    virtual FloatReg readFloatRegOperand(const StaticInst *si, int idx) = 0;
-
     /** Reads a floating point register in its binary format, instead
      * of by value. */
     virtual FloatRegBits readFloatRegOperandBits(const StaticInst *si,
                                                  int idx) = 0;
 
-    /** Sets a floating point register of single width to a value. */
-    virtual void setFloatRegOperand(const StaticInst *si,
-                                    int idx, FloatReg val) = 0;
-
     /** Sets the bits of a floating point register of single width
      * to a binary value. */
     virtual void setFloatRegOperandBits(const StaticInst *si,