Remove vestiges of removed OCaml modules

[alan]

Summary

Several OCaml modules using the old PassManager API were removed in https://reviews.llvm.org/D144751, but the META file still needs to be updated to remove them. This diff also removes an unused macro definition related to the module removals.

[alan]

Edit commit message to add [OCaml]

[nikic]

LGTM

llvm/bindings/ocaml/llvm/META.llvm.in

 package "executionengine" (
     requires = "llvm,llvm.target,ctypes.foreign"
     version = "@PACKAGE_VERSION@"
     description = "JIT and Interpreter for LLVM"
     archive(byte) = "llvm_executionengine.cma"
     archive(native) = "llvm_executionengine.cmxa"
 )
 
-package "ipo" (
-    requires = "llvm"
-    version  = "@PACKAGE_VERSION@"
-    description = "IPO Transforms for LLVM"
-    archive(byte) = "llvm_ipo.cma"
-    archive(native) = "llvm_ipo.cmxa"
-)
-
 package "debuginfo" (
     requires = "llvm"
     version = "@PACKAGE_VERSION@"
     description = "DebugInfo support for LLVM"
     archive(byte) = "llvm_debuginfo.cma"
     archive(native) = "llvm_debuginfo.cmxa"
 )
 
 package "irreader" (
     requires = "llvm"
     version  = "@PACKAGE_VERSION@"
     description = "IR assembly reader for LLVM"
     archive(byte) = "llvm_irreader.cma"
     archive(native) = "llvm_irreader.cmxa"
 )
 
-package "scalar_opts" (
-    requires = "llvm"
-    version = "@PACKAGE_VERSION@"
-    description = "Scalar Transforms for LLVM"
-    archive(byte) = "llvm_scalar_opts.cma"
-    archive(native) = "llvm_scalar_opts.cmxa"
-)
-
 package "transform_utils" (
     requires = "llvm"
     version = "@PACKAGE_VERSION@"
     description = "Transform utilities for LLVM"
     archive(byte) = "llvm_transform_utils.cma"
     archive(native) = "llvm_transform_utils.cmxa"
 )
 
-package "vectorize" (
-    requires = "llvm"
-    version = "@PACKAGE_VERSION@"
-    description = "Vector Transforms for LLVM"
-    archive(byte) = "llvm_vectorize.cma"
-    archive(native) = "llvm_vectorize.cmxa"
-)
-
-package "passmgr_builder" (
-    requires = "llvm"
-    version = "@PACKAGE_VERSION@"
-    description = "Pass Manager Builder for LLVM"
-    archive(byte) = "llvm_passmgr_builder.cma"
-    archive(native) = "llvm_passmgr_builder.cmxa"
-)
-
 package "target" (
     requires = "llvm"
     version  = "@PACKAGE_VERSION@"
     description = "Target Information for LLVM"
     archive(byte) = "llvm_target.cma"
     archive(native) = "llvm_target.cmxa"
 )
 

llvm/bindings/ocaml/llvm/llvm_ocaml.h

 #define Attribute_val(v) ((LLVMAttributeRef)from_val(v))
 #define Module_val(v) ((LLVMModuleRef)from_val(v))
 #define Metadata_val(v) ((LLVMMetadataRef)from_val(v))
 #define Type_val(v) ((LLVMTypeRef)from_val(v))
 #define Value_val(v) ((LLVMValueRef)from_val(v))
 #define Use_val(v) ((LLVMUseRef)from_val(v))
 #define BasicBlock_val(v) ((LLVMBasicBlockRef)from_val(v))
 #define MemoryBuffer_val(v) ((LLVMMemoryBufferRef)from_val(v))
-#define PassManager_val(v) ((LLVMPassManagerRef)from_val(v))
 
 /* Convert a C pointer to an OCaml option */
 value ptr_to_option(void *Ptr);
 
 /* Convert a C string into an OCaml string */
 value cstr_to_string(const char *Str, mlsize_t Len);
 
 #endif // LLVM_LLVM_OCAML_H