[llvm] Drop unaligned from calls to llvm::support::endian::{read,write} (NFC)

The last template parameter of llvm::support::endian::{read,write}
defaults to unaligned, so we can drop that at call sites.

Author: kazutakahirata

llvm/include/llvm/Support/BinaryStreamReader.h

@@ -73,8 +73,7 @@ class BinaryStreamReader {
     if (auto EC = readBytes(Bytes, sizeof(T)))
       return EC;
 
-    Dest = llvm::support::endian::read<T, llvm::support::unaligned>(
-        Bytes.data(), Stream.getEndian());
+    Dest = llvm::support::endian::read<T>(Bytes.data(), Stream.getEndian());
     return Error::success();
   }
 

llvm/include/llvm/Support/BinaryStreamWriter.h

@@ -59,8 +59,7 @@ class BinaryStreamWriter {
     static_assert(std::is_integral_v<T>,
                   "Cannot call writeInteger with non-integral value!");
     uint8_t Buffer[sizeof(T)];
-    llvm::support::endian::write<T, llvm::support::unaligned>(
-        Buffer, Value, Stream.getEndian());
+    llvm::support::endian::write<T>(Buffer, Value, Stream.getEndian());
     return writeBytes(Buffer);
   }
 

llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h

@@ -318,17 +318,17 @@ class RuntimeDyldImpl {
   std::string ErrorStr;
 
   void writeInt16BE(uint8_t *Addr, uint16_t Value) {
-    llvm::support::endian::write<uint16_t, llvm::support::unaligned>(
+    llvm::support::endian::write<uint16_t>(
         Addr, Value, IsTargetLittleEndian ? support::little : support::big);
   }
 
   void writeInt32BE(uint8_t *Addr, uint32_t Value) {
-    llvm::support::endian::write<uint32_t, llvm::support::unaligned>(
+    llvm::support::endian::write<uint32_t>(
         Addr, Value, IsTargetLittleEndian ? support::little : support::big);
   }
 
   void writeInt64BE(uint8_t *Addr, uint64_t Value) {
-    llvm::support::endian::write<uint64_t, llvm::support::unaligned>(
+    llvm::support::endian::write<uint64_t>(
         Addr, Value, IsTargetLittleEndian ? support::little : support::big);
   }