[TI removal] Remove discussion of `TerminatorInst` from the LLVM

documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@344727 91177308-0d34-0410-b5e6-96231b3b80d8

docs/BranchWeightMetadata.rst

@@ -9,10 +9,10 @@ Introduction
 ============
 
 Branch Weight Metadata represents branch weights as its likeliness to be taken
-(see :doc:`BlockFrequencyTerminology`). Metadata is assigned to the
-``TerminatorInst`` as a ``MDNode`` of the ``MD_prof`` kind. The first operator
-is always a ``MDString`` node with the string "branch_weights".  Number of
-operators depends on the terminator type.
+(see :doc:`BlockFrequencyTerminology`). Metadata is assigned to an
+``Instruction`` that is a terminator as a ``MDNode`` of the ``MD_prof`` kind.
+The first operator is always a ``MDString`` node with the string
+"branch_weights".  Number of operators depends on the terminator type.
 
 Branch weights might be fetch from the profiling file, or generated based on
 `__builtin_expect`_ instruction.

docs/ProgrammersManual.rst

@@ -3736,13 +3736,6 @@ Important Subclasses of the ``Instruction`` class
   `ICmpInst <LangRef.html#i_icmp>`_ (integer opreands), and
   `FCmpInst <LangRef.html#i_fcmp>`_ (floating point operands).
 
-.. _TerminatorInst:
-
-* ``TerminatorInst``
-
-  This subclass is the parent of all terminator instructions (those which can
-  terminate a block).
-
 .. _m_Instruction:
 
 Important Public Members of the ``Instruction`` class
@@ -4068,7 +4061,7 @@ This class represents a single entry single exit section of the code, commonly
 known as a basic block by the compiler community.  The ``BasicBlock`` class
 maintains a list of Instruction_\ s, which form the body of the block.  Matching
 the language definition, the last element of this list of instructions is always
-a terminator instruction (a subclass of the TerminatorInst_ class).
+a terminator instruction.
 
 In addition to tracking the list of instructions that make up the block, the
 ``BasicBlock`` class also keeps track of the :ref:`Function <c_Function>` that
@@ -4119,7 +4112,7 @@ Important Public Members of the ``BasicBlock`` class
   Returns a pointer to :ref:`Function <c_Function>` the block is embedded into,
   or a null pointer if it is homeless.
 
-* ``TerminatorInst *getTerminator()``
+* ``Instruction *getTerminator()``
 
   Returns a pointer to the terminator instruction that appears at the end of the
   ``BasicBlock``.  If there is no terminator instruction, or if the last