remove repetitive words (#14912)

Signed-off-by: battmdpkq <cmaker@163.com>

crates/polars-core/src/chunked_array/logical/mod.rs

@@ -33,7 +33,7 @@ pub use time::*;
 
 use crate::prelude::*;
 
-/// Maps a logical type to a a chunked array implementation of the physical type.
+/// Maps a logical type to a chunked array implementation of the physical type.
 /// This saves a lot of compiler bloat and allows us to reuse functionality.
 pub struct Logical<Logical: PolarsDataType, Physical: PolarsDataType>(
     pub ChunkedArray<Physical>,

crates/polars-parquet/src/arrow/read/deserialize/nested.rs

@@ -404,7 +404,7 @@ where
                     },
                     PhysicalType::FixedLenByteArray(n) => {
                         polars_bail!(ComputeError:
-                            "Can't decode Decimal256 type from from `FixedLenByteArray` of len {n}"
+                            "Can't decode Decimal256 type from `FixedLenByteArray` of len {n}"
                         )
                     },
                     _ => {

crates/polars-pipe/src/executors/sinks/joins/generic_probe_outer.rs

@@ -22,7 +22,7 @@ pub struct GenericOuterJoinProbe<K: ExtraPayload> {
     /// all chunks are stacked into a single dataframe
     /// the dataframe is not rechunked.
     df_a: Arc<DataFrame>,
-    // Dummy needed for the the flush phase.
+    // Dummy needed for the flush phase.
     df_b_dummy: Option<DataFrame>,
     /// The join columns are all tightly packed
     /// the values of a join column(s) can be found