[lldb] NFC remove DISALLOW_COPY_AND_ASSIGN

Summary:
This is how I applied my clang-tidy check (see
https://reviews.llvm.org/D80531) in order to remove
`DISALLOW_COPY_AND_ASSIGN` and have deleted copy ctors and deleted
assignment operators instead.

```
lang=bash
grep DISALLOW_COPY_AND_ASSIGN /opt/notnfs/kkleine/llvm/lldb -r -l | sort | uniq > files

for i in $(cat files);
do
  clang-tidy \
    --checks="-*,modernize-replace-disallow-copy-and-assign-macro" \
    --format-style=LLVM \
    --header-filter=.* \
    --fix \
    -fix-errors \
    $i;
done
```

Reviewers: espindola, labath, aprantl, teemperor

Reviewed By: labath, aprantl, teemperor

Subscribers: teemperor, aprantl, labath, emaste, sbc100, aheejin, MaskRay, arphaman, usaxena95, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D80543

1 files changed, 8 insertions, 3 deletions

diff --git a/lldb/source/Commands/CommandObjectPlatform.cpp b/lldb/source/Commands/CommandObjectPlatform.cpp
index 4b19592..103185a 100644
--- a/lldb/source/Commands/CommandObjectPlatform.cpp
+++ b/lldb/source/Commands/CommandObjectPlatform.cpp
@@ -133,7 +133,8 @@ public:
   uint32_t m_permissions;
 
 private:
-  DISALLOW_COPY_AND_ASSIGN(OptionPermissions);
+  OptionPermissions(const OptionPermissions &) = delete;
+  const OptionPermissions &operator=(const OptionPermissions &) = delete;
 };
 
 // "platform select <platform-name>"
@@ -758,7 +759,9 @@ public:
 
 private:
   // For CommandObjectPlatform only
-  DISALLOW_COPY_AND_ASSIGN(CommandObjectPlatformFile);
+  CommandObjectPlatformFile(const CommandObjectPlatformFile &) = delete;
+  const CommandObjectPlatformFile &
+  operator=(const CommandObjectPlatformFile &) = delete;
 };
 
 // "platform get-file remote-file-path host-file-path"
@@ -1541,7 +1544,9 @@ public:
 
 private:
   // For CommandObjectPlatform only
-  DISALLOW_COPY_AND_ASSIGN(CommandObjectPlatformProcess);
+  CommandObjectPlatformProcess(const CommandObjectPlatformProcess &) = delete;
+  const CommandObjectPlatformProcess &
+  operator=(const CommandObjectPlatformProcess &) = delete;
 };
 
 // "platform shell"