fix: remove some duplicate words in msgs (#20766)

## Description 

spotted some abundant words in msgs and removed them.

external-crates/move/crates/move-compiler/src/diagnostics/mod.rs

@@ -832,7 +832,7 @@ macro_rules! diag {
 
 pub const ICE_BUG_REPORT_MESSAGE: &str =
     "The Move compiler has encountered an internal compiler error.\n \
-    Please report this this issue to the Mysten Labs Move language team,\n \
+    Please report this issue to the Mysten Labs Move language team,\n \
     including this error and any relevant code, to the Mysten Labs issue tracker\n \
     at : https://github.com/MystenLabs/sui/issues";
 

external-crates/move/crates/move-compiler/src/typing/deprecation_warnings.rs

@@ -186,7 +186,7 @@ fn deprecations(
     if deprecations.len() != 1 {
         reporter.add_diag(ice!((
             source_location,
-            "ICE: verified that there is at at least one deprecation attribute above, \
+            "ICE: verified that there is at least one deprecation attribute above, \
             and expansion should have failed if there were multiple deprecation attributes."
         )));
         return None;

sui-execution/latest/sui-move-natives/src/config.rs

@@ -164,7 +164,7 @@ fn unpack_struct<const N: usize>(s: Value) -> PartialVMResult<[Value; N]> {
     let s: Struct = s.value_as()?;
     s.unpack()?.collect::<Vec<_>>().try_into().map_err(|e| {
         PartialVMError::new(StatusCode::UNKNOWN_INVARIANT_VIOLATION_ERROR)
-            .with_message(format!("struct expected to have have {N} fields: {e:?}"))
+            .with_message(format!("struct expected to have {N} fields: {e:?}"))
     })
 }