code cleanup: unused variables

src/libespeak-ng/intonation.c

 #define PRIMARY_LAST     7
 
 static int number_pre;
-static int number_body;
 static int number_tail;
 static int last_primary;
 static int tone_posn;
 	int max_stress_posn2 = 0; // penuntimate syllable of the highest stress
 
 	number_pre = -1; // number of vowels before 1st primary stress
-	number_body = 0;
 	number_tail = 0; // number between tonic syllable and next primary
 	last_primary = -1;
 

src/libespeak-ng/voices.c

 	char phonemes_name[40] = "";
 	const char *language_type;
 	char buf[sizeof(path_home)+30];
+#if USE_MBROLA
 	char name1[40];
 	char name2[80];
+#endif
 
 	int pitch1;
 	int pitch2;

src/speechPlayer/src/speechWaveGenerator.cpp

 
 	unsigned int generate(const unsigned int sampleCount, sample* sampleBuf) {
 		if(!frameManager) return 0; 
-		double val=0;
 		for(unsigned int i=0;i<sampleCount;++i) {
 			const speechPlayer_frame_t* frame=frameManager->getCurrentFrame();
 			if(frame) {