Whitespace cleanup to quiet new blank line at EOF git hook.

platforms/common/include/px4_platform_common/constexpr_util.h

@@ -55,5 +55,3 @@ static inline int _constexpr_assert_failure(const char *msg)
  * If executed at runtime, it has no effect other than slight runtime overhead.
  */
 #define constexpr_assert(expr, msg) if (!(expr)) { _constexpr_assert_failure(msg); }
-
-

platforms/common/include/px4_platform_common/i2c.h

@@ -97,4 +97,3 @@ private:
 	int _index{-1};
 	int _external_bus_counter{0};
 };
-

platforms/common/include/px4_platform_common/i2c_spi_buses.h

@@ -245,5 +245,3 @@ protected:
 	}
 private:
 };
-
-

platforms/common/include/px4_platform_common/spi.h

@@ -164,4 +164,3 @@ private:
 	int _external_bus_counter{0};
 	int _bus_device_index{0};
 };
-