Merge pull request #13 from vhd1/issue2-remove-unused-flag

## Issue Description:
Title: Remove Unused Variable "flag2" to Enhance Code Clarity and Efficiency

## Description:
In the current codebase, there exists a variable named "flag2" that is declared but never utilized within the code. This unused variable not only clutters the codebase but also introduces potential confusion for developers who may assume its significance or spend unnecessary time deciphering its purpose. Removing this unused variable will not only streamline the code but also improve its readability and maintainability.

## Location : 
src/main/java/de/dennisguse/opentracks/sensors/BluetoothHandlerManagerCyclingPower.java

## Solution:
To address this issue, the unused variable "flag2" should be identified and removed from the relevant sections of the codebase. It is recommended to conduct thorough testing after the removal to ensure that it does not impact the functionality of the program adversely.

## Reasons:
1. Improved Code Clarity: Removing unnecessary variables such as "flag2" will enhance the clarity of the codebase, making it easier for developers to understand the logic and functionality of the program.
2. Reduced Maintenance Overhead: Eliminating unused variables reduces the likelihood of introducing bugs or errors during future modifications or enhancements to the code.
3. Enhanced Performance: While the impact on performance may be negligible, removing redundant variables can contribute to minor improvements in memory utilization and execution speed.
4. Facilitates Code Review and Collaboration: A cleaner codebase encourages more efficient code reviews and facilitates collaboration among developers, as it reduces the cognitive load associated with understanding the code.

src/main/java/de/dennisguse/opentracks/sensors/BluetoothHandlerManagerCyclingPower.java

@@ -50,7 +50,6 @@ public static Data parseCyclingPower(BluetoothGattCharacteristic characteristic)
 
         int index = 0;
         int flags1 = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, index++);
-        int flags2 = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, index++);
         boolean hasPedalPowerBalance = (flags1 & 0x01) > 0;
         boolean hasAccumulatedTorque = (flags1 & 0x04) > 0;
         boolean hasWheel = (flags1 & 16) > 0;