fix: remove duplicate words in comments (#5151)

Spotted a couple of 'the the' in source comments while browsing the
code.

src/trace_processor/storage/stats.h

diff --git a/src/trace_processor/storage/stats.h b/src/trace_processor/storage/stats.h
index 3e954b3..ef88464 100644
--- a/src/trace_processor/storage/stats.h
+++ b/src/trace_processor/storage/stats.h
@@ -586,7 +586,7 @@
       "Number of class parsing errors encountered. This indicates a "          \
       "malformed hprof file. Check if the hprof opens correctly in a tool "    \
       "like AHAT. Missing classes could cause missing references, thus "       \
-      "affecting the overall size of the the heap graph."),                    \
+      "affecting the overall size of the heap graph."),                    \
   F(hprof_header_errors,                   kSingle,  kError,   kAnalysis,      \
       "Number of header parsing errors. This indicates a malformed hprof "     \
       "file with invalid or missing header information. The file may be "      \

src/tracing/service/trace_buffer_v2.h

diff --git a/src/tracing/service/trace_buffer_v2.h b/src/tracing/service/trace_buffer_v2.h
index cddb05d..cf969e6 100644
--- a/src/tracing/service/trace_buffer_v2.h
+++ b/src/tracing/service/trace_buffer_v2.h
@@ -107,7 +107,7 @@
   // The number of payload bytes unconsumed. This starts at payload_size and
   // shrinks until it reaches 0 as we consume fragments.
   // It is always <= size and <= payload_size.
-  // Effectively (payload_size - payload-avail) is the offset of the the next
+  // Effectively (payload_size - payload-avail) is the offset of the next
   // unconsumed fragment header (the varint with the size).
   uint16_t payload_avail = 0;